Electron configurations of the elements (data page)

This page shows the electron configurations of the neutral gaseous atoms in their ground states. For each atom the subshells are given first in concise form, then with all subshells written out, followed by the number of electrons per shell. Electron configurations of elements beyond hassium (element 108), including those of the undiscovered elements beyond oganesson (element 118), are predicted. As an approximate rule, electron configurations are given by the Aufbau principle and the Madelung rule. However there are numerous exceptions; for example the lightest exception is chromium, which would be predicted to have the configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁴ 4s², written as [Ar] 3d⁴ 4s², but whose actual configuration given in the table below is [Ar] 3d⁵ 4s¹.

Main article: Electron configuration

Note that these electron configurations are given for neutral atoms in the gas phase, which are not the same as the electron configurations for the same atoms in chemical environments. In many cases, multiple configurations are within a small range of energies and the irregularities shown above are quite irrelevant chemically.[1]

Legend
1s	2s	2p	3s	3p	3d	4s	4p	4d	4f	5s	5p	5d	5f	5g	6s	6p	6d	6f	7s	7p	7d	8s	8p	9s	9p
1 H hydrogen: 1s^1
1s^1
1
2 He helium: 1s^2
1s^2
2
3 Li lithium: [He] 2s^1
1s^2	2s^1
2	1
4 Be beryllium: [He] 2s^2
1s^2	2s^2
2	2
5 B boron: [He] 2s^2 2p^1
1s^2	2s^2	2p^1
2	3
6 C carbon: [He] 2s^2 2p^2
1s^2	2s^2	2p^2
2	4
7 N nitrogen: [He] 2s^2 2p^3
1s^2	2s^2	2p^3
2	5
8 O oxygen: [He] 2s^2 2p^4
1s^2	2s^2	2p^4
2	6
9 F fluorine: [He] 2s^2 2p^5
1s^2	2s^2	2p^5
2	7
10 Ne neon: [He] 2s^2 2p^6
1s^2	2s^2	2p^6
2	8
11 Na sodium: [Ne] 3s^1
1s^2	2s^2	2p^6	3s^1
2	8		1
12 Mg magnesium: [Ne] 3s^2
1s^2	2s^2	2p^6	3s^2
2	8		2
13 Al aluminium: [Ne] 3s^2 3p^1
1s^2	2s^2	2p^6	3s^2	3p^1
2	8		3
14 Si silicon: [Ne] 3s^2 3p^2
1s^2	2s^2	2p^6	3s^2	3p^2
2	8		4
15 P phosphorus: [Ne] 3s^2 3p^3
1s^2	2s^2	2p^6	3s^2	3p^3
2	8		5
16 S sulfur: [Ne] 3s^2 3p^4
1s^2	2s^2	2p^6	3s^2	3p^4
2	8		6
17 Cl chlorine: [Ne] 3s^2 3p^5
1s^2	2s^2	2p^6	3s^2	3p^5
2	8		7
18 Ar argon: [Ne] 3s^2 3p^6
1s^2	2s^2	2p^6	3s^2	3p^6
2	8		8
19 K potassium: [Ar] 4s^1
1s^2	2s^2	2p^6	3s^2	3p^6		4s^1
2	8		8			1
20 Ca calcium: [Ar] 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6		4s^2
2	8		8			2
21 Sc scandium: [Ar] 3d^1 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^1	4s^2
2	8		9			2
22 Ti titanium: [Ar] 3d^2 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^2	4s^2
2	8		10			2
23 V vanadium: [Ar] 3d^3 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^3	4s^2
2	8		11			2
24 Cr chromium: [Ar] 3d^5 4s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^5	4s^1
2	8		13			1
25 Mn manganese: [Ar] 3d^5 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^5	4s^2
2	8		13			2
26 Fe iron: [Ar] 3d^6 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^6	4s^2
2	8		14			2
27 Co cobalt: [Ar] 3d^7 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^7	4s^2
2	8		15			2
28 Ni nickel: [Ar] 3d^8 4s^2 or [Ar] 3d^9 4s^1 (disputed, see Nickel article)
1s^2	2s^2	2p^6	3s^2	3p^6	3d^8	4s^2
2	8		16			2
29 Cu copper: [Ar] 3d^10 4s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^1
2	8		18			1
30 Zn zinc: [Ar] 3d^10 4s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2
2	8		18			2
31 Ga gallium: [Ar] 3d^10 4s^2 4p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^1
2	8		18			3
32 Ge germanium: [Ar] 3d^10 4s^2 4p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^2
2	8		18			4
33 As arsenic: [Ar] 3d^10 4s^2 4p^3
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^3
2	8		18			5
34 Se selenium: [Ar] 3d^10 4s^2 4p^4
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^4
2	8		18			6
35 Br bromine: [Ar] 3d^10 4s^2 4p^5
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^5
2	8		18			7
36 Kr krypton: [Ar] 3d^10 4s^2 4p^6
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6
2	8		18			8
37 Rb rubidium: [Kr] 5s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6			5s^1
2	8		18			8				1
38 Sr strontium: [Kr] 5s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6			5s^2
2	8		18			8				2
39 Y yttrium: [Kr] 4d^1 5s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^1		5s^2
2	8		18			9				2
40 Zr zirconium: [Kr] 4d^2 5s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^2		5s^2
2	8		18			10				2
41 Nb niobium: [Kr] 4d^4 5s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^4		5s^1
2	8		18			12				1
42 Mo molybdenum: [Kr] 4d^5 5s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^5		5s^1
2	8		18			13				1
43 Tc technetium: [Kr] 4d^5 5s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^5		5s^2
2	8		18			13				2
44 Ru ruthenium: [Kr] 4d^7 5s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^7		5s^1
2	8		18			15				1
45 Rh rhodium: [Kr] 4d^8 5s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^8		5s^1
2	8		18			16				1
46 Pd palladium: [Kr] 4d^10
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10
2	8		18			18
47 Ag silver: [Kr] 4d^10 5s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^1
2	8		18			18				1
48 Cd cadmium: [Kr] 4d^10 5s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2
2	8		18			18				2
49 In indium: [Kr] 4d^10 5s^2 5p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^1
2	8		18			18				3
50 Sn tin: [Kr] 4d^10 5s^2 5p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^2
2	8		18			18				4
51 Sb antimony: [Kr] 4d^10 5s^2 5p^3
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^3
2	8		18			18				5
52 Te tellurium: [Kr] 4d^10 5s^2 5p^4
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^4
2	8		18			18				6
53 I iodine: [Kr] 4d^10 5s^2 5p^5
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^5
2	8		18			18				7
54 Xe xenon: [Kr] 4d^10 5s^2 5p^6
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^6
2	8		18			18				8
55 Cs caesium: [Xe] 6s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^6				6s^1
2	8		18			18				8					1
56 Ba barium: [Xe] 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^6				6s^2
2	8		18			18				8					2
57 La lanthanum: [Xe] 5d^1 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10		5s^2	5p^6	5d^1			6s^2
2	8		18			18				9					2
58 Ce cerium: [Xe] 4f^1 5d^1 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^1	5s^2	5p^6	5d^1			6s^2
2	8		18			19				9					2
59 Pr praseodymium: [Xe] 4f^3 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^3	5s^2	5p^6				6s^2
2	8		18			21				8					2
60 Nd neodymium: [Xe] 4f^4 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^4	5s^2	5p^6				6s^2
2	8		18			22				8					2
61 Pm promethium: [Xe] 4f^5 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^5	5s^2	5p^6				6s^2
2	8		18			23				8					2
62 Sm samarium: [Xe] 4f^6 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^6	5s^2	5p^6				6s^2
2	8		18			24				8					2
63 Eu europium: [Xe] 4f^7 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^7	5s^2	5p^6				6s^2
2	8		18			25				8					2
64 Gd gadolinium: [Xe] 4f^7 5d^1 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^7	5s^2	5p^6	5d^1			6s^2
2	8		18			25				9					2
65 Tb terbium: [Xe] 4f^9 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^9	5s^2	5p^6				6s^2
2	8		18			27				8					2
66 Dy dysprosium: [Xe] 4f^10 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^10	5s^2	5p^6				6s^2
2	8		18			28				8					2
67 Ho holmium: [Xe] 4f^11 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^11	5s^2	5p^6				6s^2
2	8		18			29				8					2
68 Er erbium: [Xe] 4f^12 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^12	5s^2	5p^6				6s^2
2	8		18			30				8					2
69 Tm thulium: [Xe] 4f^13 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^13	5s^2	5p^6				6s^2
2	8		18			31				8					2
70 Yb ytterbium: [Xe] 4f^14 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6				6s^2
2	8		18			32				8					2
71 Lu lutetium: [Xe] 4f^14 5d^1 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^1			6s^2
2	8		18			32				9					2
72 Hf hafnium: [Xe] 4f^14 5d^2 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^2			6s^2
2	8		18			32				10					2
73 Ta tantalum: [Xe] 4f^14 5d^3 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^3			6s^2
2	8		18			32				11					2
74 W tungsten: [Xe] 4f^14 5d^4 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^4			6s^2
2	8		18			32				12					2
75 Re rhenium: [Xe] 4f^14 5d^5 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^5			6s^2
2	8		18			32				13					2
76 Os osmium: [Xe] 4f^14 5d^6 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^6			6s^2
2	8		18			32				14					2
77 Ir iridium: [Xe] 4f^14 5d^7 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^7			6s^2
2	8		18			32				15					2
78 Pt platinum: [Xe] 4f^14 5d^9 6s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^9			6s^1
2	8		18			32				17					1
79 Au gold: [Xe] 4f^14 5d^10 6s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^1
2	8		18			32				18					1
80 Hg mercury: [Xe] 4f^14 5d^10 6s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2
2	8		18			32				18					2
81 Tl thallium: [Xe] 4f^14 5d^10 6s^2 6p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^1
2	8		18			32				18					3
82 Pb lead: [Xe] 4f^14 5d^10 6s^2 6p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^2
2	8		18			32				18					4
83 Bi bismuth: [Xe] 4f^14 5d^10 6s^2 6p^3
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^3
2	8		18			32				18					5
84 Po polonium: [Xe] 4f^14 5d^10 6s^2 6p^4
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^4
2	8		18			32				18					6
85 At astatine: [Xe] 4f^14 5d^10 6s^2 6p^5
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^5
2	8		18			32				18					7
86 Rn radon: [Xe] 4f^14 5d^10 6s^2 6p^6
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^6
2	8		18			32				18					8
87 Fr francium: [Rn] 7s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^6			7s^1
2	8		18			32				18					8				1
88 Ra radium: [Rn] 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^6			7s^2
2	8		18			32				18					8				2
89 Ac actinium: [Rn] 6d^1 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^6	6d^1		7s^2
2	8		18			32				18					9				2
90 Th thorium: [Rn] 6d^2 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10			6s^2	6p^6	6d^2		7s^2
2	8		18			32				18					10				2
91 Pa protactinium: [Rn] 5f^2 6d^1 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^2		6s^2	6p^6	6d^1		7s^2
2	8		18			32				20					9				2
92 U uranium: [Rn] 5f^3 6d^1 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^3		6s^2	6p^6	6d^1		7s^2
2	8		18			32				21					9				2
93 Np neptunium: [Rn] 5f^4 6d^1 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^4		6s^2	6p^6	6d^1		7s^2
2	8		18			32				22					9				2
94 Pu plutonium: [Rn] 5f^6 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^6		6s^2	6p^6			7s^2
2	8		18			32				24					8				2
95 Am americium: [Rn] 5f^7 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^7		6s^2	6p^6			7s^2
2	8		18			32				25					8				2
96 Cm curium: [Rn] 5f^7 6d^1 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^7		6s^2	6p^6	6d^1		7s^2
2	8		18			32				25					9				2
97 Bk berkelium: [Rn] 5f^9 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^9		6s^2	6p^6			7s^2
2	8		18			32				27					8				2
98 Cf californium: [Rn] 5f^10 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^10		6s^2	6p^6			7s^2
2	8		18			32				28					8				2
99 Es einsteinium: [Rn] 5f^11 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^11		6s^2	6p^6			7s^2
2	8		18			32				29					8				2
100 Fm fermium: [Rn] 5f^12 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^12		6s^2	6p^6			7s^2
2	8		18			32				30					8				2
101 Md mendelevium: [Rn] 5f^13 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^13		6s^2	6p^6			7s^2
2	8		18			32				31					8				2
102 No nobelium: [Rn] 5f^14 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6			7s^2
2	8		18			32				32					8				2
103 Lr lawrencium: [Rn] 5f^14 7s^2 7p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6			7s^2	7p^1
2	8		18			32				32					8				3
104 Rf rutherfordium: [Rn] 5f^14 6d^2 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^2		7s^2
2	8		18			32				32					10				2
105 Db dubnium: [Rn] 5f^14 6d^3 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^3		7s^2
2	8		18			32				32					11				2
106 Sg seaborgium: [Rn] 5f^14 6d^4 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^4		7s^2
2	8		18			32				32					12				2
107 Bh bohrium: [Rn] 5f^14 6d^5 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^5		7s^2
2	8		18			32				32					13				2
108 Hs hassium: [Rn] 5f^14 6d^6 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^6		7s^2
2	8		18			32				32					14				2
109 Mt meitnerium: [Rn] 5f^14 6d^7 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^7		7s^2
2	8		18			32				32					15				2
110 Ds darmstadtium: [Rn] 5f^14 6d^8 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^8		7s^2
2	8		18			32				32					16				2
111 Rg roentgenium: [Rn] 5f^14 6d^9 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^9		7s^2
2	8		18			32				32					17				2
112 Cn copernicium: [Rn] 5f^14 6d^10 7s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2
2	8		18			32				32					18				2
113 Nh nihonium: [Rn] 5f^14 6d^10 7s^2 7p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^1
2	8		18			32				32					18				3
114 Fl flerovium: [Rn] 5f^14 6d^10 7s^2 7p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^2
2	8		18			32				32					18				4
115 Mc moscovium: [Rn] 5f^14 6d^10 7s^2 7p^3
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^3
2	8		18			32				32					18				5
116 Lv livermorium: [Rn] 5f^14 6d^10 7s^2 7p^4
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^4
2	8		18			32				32					18				6
117 Ts tennessine: [Rn] 5f^14 6d^10 7s^2 7p^5
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^5
2	8		18			32				32					18				7
118 Og oganesson: [Rn] 5f^14 6d^10 7s^2 7p^6
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^6
2	8		18			32				32					18				8
119 Uue ununennium: [Og] 8s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^6		8s^1
2	8		18			32				32					18				8			1
120 Ubn unbinilium: [Og] 8s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^6		8s^2
2	8		18			32				32					18				8			2
121 Ubu unbiunium: [Og] 8s^2 8p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^6		8s^2	8p^1
2	8		18			32				32					18				8			3
122 Ubb unbibium: [Og] 7d^1 8s^2 8p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10		7s^2	7p^6	7d^1	8s^2	8p^1
2	8		18			32				32					18				9			3
123 Ubt unbitrium: [Og] 6f^1 7d^1 8s^2 8p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10	6f^1	7s^2	7p^6	7d^1	8s^2	8p^1
2	8		18			32				32					19				9			3
124 Ubq unbiquadium: [Og] 6f^3 8s^2 8p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14		6s^2	6p^6	6d^10	6f^3	7s^2	7p^6		8s^2	8p^1
2	8		18			32				32					21				8			3
125 Ubp unbipentium: [Og] 5g^1 6f^3 8s^2 8p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^1	6s^2	6p^6	6d^10	6f^3	7s^2	7p^6		8s^2	8p^1
2	8		18			32				33					21				8			3
126 Ubh unbihexium: [Og] 5g^2 6f^2 7d^1 8s^2 8p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^2	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6	7d^1	8s^2	8p^1
2	8		18			32				34					20				9			3
127 Ubs unbiseptium: [Og] 5g^3 6f^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^3	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6		8s^2	8p^2
2	8		18			32				35					20				8			4
128 Ubo unbioctium: [Og] 5g^4 6f^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^4	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6		8s^2	8p^2
2	8		18			32				36					20				8			4
129 Ube unbiennium: [Og] 5g^5 6f^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^5	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6		8s^2	8p^2
2	8		18			32				37					20				8			4
130 Utn untrinilium: [Og] 5g^6 6f^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^6	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6		8s^2	8p^2
2	8		18			32				38					20				8			4
131 Utu untriunium: [Og] 5g^7 6f^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^7	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6		8s^2	8p^2
2	8		18			32				39					20				8			4
132 Utb untribium: [Og] 5g^8 6f^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^8	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6		8s^2	8p^2
2	8		18			32				40					20				8			4
133 Utt untritrium: [Og] 5g^8 6f^3 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^8	6s^2	6p^6	6d^10	6f^3	7s^2	7p^6		8s^2	8p^2
2	8		18			32				40					21				8			4
134 Utq untriquadium: [Og] 5g^8 6f^4 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^8	6s^2	6p^6	6d^10	6f^4	7s^2	7p^6		8s^2	8p^2
2	8		18			32				40					22				8			4
135 Utp untripentium: [Og] 5g^9 6f^4 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^9	6s^2	6p^6	6d^10	6f^4	7s^2	7p^6		8s^2	8p^2
2	8		18			32				41					22				8			4
136 Uth untrihexium: [Og] 5g^10 6f^4 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^10	6s^2	6p^6	6d^10	6f^4	7s^2	7p^6		8s^2	8p^2
2	8		18			32				42					22				8			4
137 Uts untriseptium: [Og] 5g^11 6f^3 7d^1 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^11	6s^2	6p^6	6d^10	6f^3	7s^2	7p^6	7d^1	8s^2	8p^2
2	8		18			32				43					21				9			4
138 Uto untrioctium: [Og] 5g^12 6f^3 7d^1 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^12	6s^2	6p^6	6d^10	6f^3	7s^2	7p^6	7d^1	8s^2	8p^2
2	8		18			32				44					21				9			4
139 Ute untriennium: [Og] 5g^13 6f^2 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^13	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				45					20				10			4
140 Uqn unquadnilium: [Og] 5g^14 6f^3 7d^1 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^14	6s^2	6p^6	6d^10	6f^3	7s^2	7p^6	7d^1	8s^2	8p^2
2	8		18			32				46					21				9			4
141 Uqu unquadunium: [Og] 5g^15 6f^2 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^15	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				47					20				10			4
142 Uqb unquadbium: [Og] 5g^16 6f^2 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^16	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				48					20				10			4
143 Uqt unquadtrium: [Og] 5g^17 6f^2 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^17	6s^2	6p^6	6d^10	6f^2	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				49					20				10			4
144 Uqq unquadquadium: [Og] 5g^18 6f^1 7d^3 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^1	7s^2	7p^6	7d^3	8s^2	8p^2
2	8		18			32				50					19				11			4
145 Uqp unquadpentium: [Og] 5g^18 6f^3 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^3	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					21				10			4
146 Uqh unquadhexium: [Og] 5g^18 6f^4 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^4	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					22				10			4
147 Uqs unquadseptium: [Og] 5g^18 6f^5 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^5	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					23				10			4
148 Uqo unquadoctium: [Og] 5g^18 6f^6 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^6	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					24				10			4
149 Uqe unquadennium: [Og] 5g^18 6f^6 7d^3 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^6	7s^2	7p^6	7d^3	8s^2	8p^2
2	8		18			32				50					24				11			4
150 Upn unpentnilium: [Og] 5g^18 6f^6 7d^4 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^6	7s^2	7p^6	7d^4	8s^2	8p^2
2	8		18			32				50					24				12			4
151 Upu unpentunium: [Og] 5g^18 6f^8 7d^3 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^8	7s^2	7p^6	7d^3	8s^2	8p^2
2	8		18			32				50					26				11			4
152 Upb unpentbium: [Og] 5g^18 6f^9 7d^3 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^9	7s^2	7p^6	7d^3	8s^2	8p^2
2	8		18			32				50					27				11			4
153 Upt unpenttrium: [Og] 5g^18 6f^11 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^11	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					29				10			4
154 Upq unpentquadium: [Og] 5g^18 6f^12 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^12	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					30				10			4
155 Upp unpentpentium: [Og] 5g^18 6f^13 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^13	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					31				10			4
156 Uph unpenthexium: [Og] 5g^18 6f^14 7d^2 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^2	8s^2	8p^2
2	8		18			32				50					32				10			4
157 Ups unpentseptium: [Og] 5g^18 6f^14 7d^3 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^3	8s^2	8p^2
2	8		18			32				50					32				11			4
158 Upo unpentoctium: [Og] 5g^18 6f^14 7d^4 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^4	8s^2	8p^2
2	8		18			32				50					32				12			4
159 Upe unpentennium: [Og] 5g^18 6f^14 7d^4 8s^2 8p^2 9s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^4	8s^2	8p^2	9s^1
2	8		18			32				50					32				12			4		1
160 Uhn unhexnilium: [Og] 5g^18 6f^14 7d^5 8s^2 8p^2 9s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^5	8s^2	8p^2	9s^1
2	8		18			32				50					32				13			4		1
161 Uhu unhexunium: [Og] 5g^18 6f^14 7d^6 8s^2 8p^2 9s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^6	8s^2	8p^2	9s^1
2	8		18			32				50					32				14			4		1
162 Uhb unhexbium: [Og] 5g^18 6f^14 7d^8 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^8	8s^2	8p^2
2	8		18			32				50					32				16			4
163 Uht unhextrium: [Og] 5g^18 6f^14 7d^9 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^9	8s^2	8p^2
2	8		18			32				50					32				17			4
164 Uhq unhexquadium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^2
2	8		18			32				50					32				18			4
165 Uhp unhexpentium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^2 9s^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^2	9s^1
2	8		18			32				50					32				18			4		1
166 Uhh unhexhexium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^2 9s^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^2	9s^2
2	8		18			32				50					32				18			4		2
167 Uhs unhexseptium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^2 9s^2 9p^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^2	9s^2	9p^1
2	8		18			32				50					32				18			4		3
168 Uho unhexoctium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^2 9s^2 9p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^2	9s^2	9p^2
2	8		18			32				50					32				18			4		4
169 Uhe unhexennium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^3 9s^2 9p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^3	9s^2	9p^2
2	8		18			32				50					32				18			5		4
170 Usn unseptnilium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^4 9s^2 9p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^4	9s^2	9p^2
2	8		18			32				50					32				18			6		4
171 Usu unseptunium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^5 9s^2 9p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^5	9s^2	9p^2
2	8		18			32				50					32				18			7		4
172 Usb unseptbium: [Og] 5g^18 6f^14 7d^10 8s^2 8p^6 9s^2 9p^2
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	7s^2	7p^6	7d^10	8s^2	8p^6	9s^2	9p^2
2	8		18			32				50					32				18			8		4

Legend
1s	2s	2p	3s	3p	3d	4s	4p	4d	4f	5s	5p	5d	5f	5g	6s	6p	6d	6f	6g	7s	7p	7d	8s	8p	9s	9p
173 Ust unsepttrium: [Usb] 6g^1
1s^2	2s^2	2p^6	3s^2	3p^6	3d^10	4s^2	4p^6	4d^10	4f^14	5s^2	5p^6	5d^10	5f^14	5g^18	6s^2	6p^6	6d^10	6f^14	6g^1	7s^2	7p^6	7d^10	8s^2	8p^6	9s^2	9p^2
2	8		18			32				50					33					18			8		4

   Group 18 element (noble gas), has a complete shell. Complete shells are referred to as "[Ar]" for argon etc.

The complete shell of element 172 is not easily recognisable because of the p-orbital splitting: the 8p and 9p orbitals are split into more (p_1/2, two electrons) and less (p_3/2, four electrons) stabilised parts. Due to relativistic effects, the 8s and 8p_1/2 orbitals are deeply buried in the core and it is 9s+9p_1/2+8p_3/2 that forms the stable octet outside.

References

1. Jørgensen, Christian K. (1988). "Influence of rare earths on chemical understanding and classification". Handbook on the Physics and Chemistry of Rare Earths. 11. pp. 197–292. doi:10.1016/S0168-1273(88)11007-6. ISBN 9780444870803.

All sources concur with the data above except in the instances listed separately:

NIST

• http://physics.nist.gov/PhysRefData/IonEnergy/ionEnergy.html ; retrieved July 2005, (elements 1–104) based on:
  • Atomic Spectroscopy, by W.C. Martin and W.L. Wiese in Atomic, Molecular, & Optical Physics Handbook, ed. by G.W.F. Drake (AIP, Woodbury, NY, 1996) Chapter 10, pp. 135–153.

This website is also cited in the CRC Handbook as source of Section 1, subsection Electron Configuration of Neutral Atoms in the Ground State.

• 91 Pa : [Rn] 5f²(³H₄) 6d 7s²
• 92 U : [Rn] 5f³(⁴I^o_9/2) 6d 7s²
• 93 Np : [Rn] 5f⁴(⁵I₄) 6d 7s²
• 103 Lr : [Rn] 5f¹⁴ 7s² 7p¹ question-marked
• 104 Rf : [Rn] 5f¹⁴ 6d² 7s² question-marked

CRC

• David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition, online version. CRC Press. Boca Raton, Florida, 2003; Section 1, Basic Constants, Units, and Conversion Factors; Electron Configuration of Neutral Atoms in the Ground State. (elements 1–104)
• Also subsection Periodic Table of the Elements, (elements 1–103) based on:
  • G. J. Leigh, Editor, Nomenclature of Inorganic Chemistry, Blackwell Scientific Publications, Oxford, 1990.
  • Chemical and Engineering News, 63(5), 27, 1985.
  • Atomic Weights of the Elements, 1999, Pure Appl. Chem., 73, 667, 2001.

WebElements

• http://www.webelements.com/ ; retrieved July 2005, electron configurations based on:
  • Atomic, Molecular, & Optical Physics Handbook, Ed. Gordon W. F. Drake, American Institute of Physics, Woodbury, New York, 1996.
  • J.E. Huheey, E.A. Keiter, and R.L. Keiter in Inorganic Chemistry : Principles of Structure and Reactivity, 4th edition, Harper Collins, New York, 1993.
  • R.L. DeKock and H.B. Gray in Chemical Structure and bonding, Benjamin/Cummings, Menlo Park, California, 1980.
  • A.M. James and M.P. Lord in Macmillan's Chemical and Physical Data, Macmillan, London, UK, 1992.
• 103 Lr : [Rn].5f¹⁴.7s².7p¹ tentative ; 2.8.18.32.32.9.2 [inconsistent]
• 104 Rf : [Rn].5f¹⁴.6d².7s² tentative
• 105 Db : [Rn].5f¹⁴.6d³.7s² (a guess based upon that of tantalum) ; 2.8.18.32.32.11.2
• 106 Sg : [Rn].5f¹⁴.6d⁴.7s² (a guess based upon that of tungsten) ; 2.8.18.32.32.12.2
• 107 Bh : [Rn].5f¹⁴.6d⁵.7s² (a guess based upon that of rhenium) ; 2.8.18.32.32.13.2
• 108 Hs : [Rn].5f¹⁴.6d⁶.7s² (a guess based upon that of osmium) ; 2.8.18.32.32.14.2
• 109 Mt : [Rn].5f¹⁴.6d⁷.7s² (a guess based upon that of iridium) ; 2.8.18.32.32.15.2
• 110 Ds : [Rn].5f¹⁴.6d⁹.7s¹ (a guess based upon that of platinum) ; 2.8.18.32.32.17.1
• 111 Rg : [Rn].5f¹⁴.6d¹⁰.7s¹ (a guess based upon that of gold) ; 2.8.18.32.32.18.1
• 112 Cn : [Rn].5f¹⁴.6d¹⁰.7s² (a guess based upon that of mercury) ; 2.8.18.32.32.18.2
• 113 Nh : [Rn].5f¹⁴.6d¹⁰.7s².7p¹ (a guess based upon that of thallium) ; 2.8.18.32.32.18.3
• 114 Fl : [Rn].5f¹⁴.6d¹⁰.7s².7p² (a guess based upon that of lead) ; 2.8.18.32.32.18.4
• 115 Mc : [Rn].5f¹⁴.6d¹⁰.7s².7p³ (a guess based upon that of bismuth) ; 2.8.18.32.32.18.5
• 116 Lv : [Rn].5f¹⁴.6d¹⁰.7s².7p⁴ (a guess based upon that of polonium) ; 2.8.18.32.32.18.6
• 117 Ts : [Rn].5f¹⁴.6d¹⁰.7s².7p⁵ (a guess based upon that of astatine) ; 2.8.18.32.32.18.7
• 118 Og : [Rn].5f¹⁴.6d¹⁰.7s².7p⁶ (a guess based upon that of radon) ; 2.8.18.32.32.18.8

Lange

• J.A. Dean (ed), Lange's Handbook of Chemistry (15th Edition), online version, McGraw-Hill, 1999; Section 4, Table 4.1 Electronic Configuration and Properties of the Elements. (Elements 1–103)
• 97 Bk : [Rn] 5f⁸ 6d 7s²
• 103 Lr : [Rn] 4f¹⁴ [sic] 6d 7s²

Hill and Petrucci

• Hill and Petrucci, General Chemistry: An Integrated Approach (3rd edition), Prentice Hall. (Elements 1–106)
• 58 Ce : [Xe] 4f² 6s²
• 103 Lr : [Rn] 5f¹⁴ 6d¹ 7s²
• 104 Rf : [Rn] 5f¹⁴ 6d² 7s² (agrees with guess above)
• 105 Db : [Rn] 5f¹⁴ 6d³ 7s²
• 106 Sg : [Rn] 5f¹⁴ 6d⁴ 7s²

Hoffman, Lee, and Pershina

Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. p. 1722. ISBN 1-4020-3555-1.

This book contains predicted electron configurations for the elements 119–172 and 184, based on relativistic Dirac–Fock calculations by B. Fricke in Fricke, B. (1975). Dunitz, J. D. (ed.). "Superheavy elements a prediction of their chemical and physical properties". Structure and Bonding. Berlin: Springer-Verlag. 21: 89–144. doi:10.1007/BFb0116496.

Fricke

Predicted electron configurations for element 173 based on relativistic Dirac–Fock calculations by B. FrickeFricke, Burkhard (1977). "Dirac-Fock-Slater calculations for the elements Z = 100, fermium, to Z = 173" (PDF). Recent Impact of Physics on Inorganic Chemistry. 19: 83–192. Bibcode:1977ADNDT..19...83F. doi:10.1016/0092-640X(77)90010-9. Retrieved 25 February 2016.