Amphid salts

Amphid salts was a name given by Jons Jacob Berzelius in the 19th century for chemical salts derived from the 16th group of the periodic table which included oxygen, sulfur, selenium, and tellurium.[1] The term received some use in the early 1800s but is now obsolete.[2]. The current term in use for the 16th group is chalcogens.

Chalcogens (Current Name) Amphid Salts (Old Name)
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson pnictogens ←    → halogens
IUPAC group number 16 Name by element oxygen group Trivial name chalcogens CAS group number (US, pattern A-B-A) VIA old IUPAC number (Europe, pattern A-B) VIB
↓ Period

References

1. Lee, J. D. (2008-01-03). Concise Inorganic Chemistry, 5TH ed. Wiley India Pvt. Limited. ISBN 978-81-265-1554-7.
2. Jensen, William B. (1997-09-01). "A Note on the Term "Chalcogen"". Journal of Chemical Education. 74 (9): 1063. doi:10.1021/ed074p1063. ISSN 0021-9584.