« back
IronFe Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 1 Electron 2

Iron is a chemical element with symbol Fe (from Latin:ferrum) and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core.

26 Atomic Number
55.85 Atomic Mass (u)
1808.15 Melting Point (K)
3134 Boiling Point (K)
7.87 Density (solid: g/cm³, gas: g/liter)
1.7 Atomic Radius (Å)
1.32 Covalent Radius (Å)
1.83 Electronegativity
7.9 First Ionization Energy (eV)
14.79 Electron Affinity
4 Number of Shells
2, 8, 14, 2 Electron Shell Occupations
0.45 Specific Heat (J/g)