Iron | Fe (Element) - PubChem
https://pubchem.ncbi.nlm.nih.gov/element/Iron
The symbol Fe is derived from the Latin ferrum for "firmness". It is of interest to note that 56 Fe requires more energy to be formed than any other nuclide. It is, therefore, the ultimate endproduct of stellar nuclear fusion. Commission on Isotopic Abundances and Atomic Weights (CIAAW), International Union of Pure and Applied Chemistry (IUPAC) Atomic Mass: 55.84 u Oxidation States: +3, +2 Electron Configuration: [Ar]4s23d6 Year Discovered: Ancient
Atomic Mass: 55.84 u
Oxidation States: +3, +2
Electron Configuration: [Ar]4s23d6
Year Discovered: Ancient
DA: 94 PA: 98 MOZ Rank: 40