Iron (symbol Fe) is element number 26 of the periodic table and belongs to the “Transition metal” category. Its atomic mass is about 55.845, and its phase under standard conditions is Solid. This element sits in period 4 and group 8 of the periodic table, and its electrons are arranged in shells of 2, 8, 14, 2. The short electron configuration of Iron is [Ar] 3d⁶ 4s². Known uses of Iron include Steel, Construction and Blood hemoglobin.
The electron configuration of Iron (Fe), with 26 electrons, is shown below. The last shell (shell 4) is highlighted:
Distribution of 26 electrons of Iron across shells K to N:
The transition metals are the d-block elements: usually good conductors of heat and electricity, with several oxidation states, and they form colourful compounds and important catalysts.
The atomic number of Iron (Fe) is 26; that is, every atom of it has 26 protons.
The electron configuration of Iron (Fe) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s²; in short form it is [Ar] 3d⁶ 4s², and its last shell is 4s².
The chemical symbol of Iron is Fe.
Iron is located in period 4 and group 8 and belongs to the “Transition metal” category.
The atomic mass of Iron is about 55.845 (atomic mass units).
The phase of Iron under standard conditions is Solid.
Uses of Iron include Steel, Construction and Blood hemoglobin.
Iron has been known to humans since prehistoric times and has no single discoverer.
Scandium (Sc)Titanium (Ti)Vanadium (V)Chromium (Cr)Manganese (Mn)Cobalt (Co)Nickel (Ni)Copper (Cu)Zinc (Zn)Yttrium (Y)Zirconium (Zr)Niobium (Nb)Molybdenum (Mo)Technetium (Tc)Ruthenium (Ru)Rhodium (Rh)Palladium (Pd)Silver (Ag)Cadmium (Cd)Hafnium (Hf)
