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Iron (Fe)
Atomic number: 26 · Category: transition metal · Group 8 · Period 4 · Phase: Solid
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.
Atomic mass: 55.8452
Density: 7.874
Melting point: 1811 K
Boiling point: 3134 K
Appearance: lustrous metallic with a grayish tinge
Source: Wikipedia
Block: d
Molar heat: 25.1
CPK color:#e06633
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d6
Configuration (semantic): [Ar] 3d6 4s2
Shells: 2, 8, 14, 2
Electronegativity (Pauling): 1.83
Electron affinity: 14.785
Ionization energies: 762.5, 1561.9, 2957, 5290, 7240, 9560, 12060, 14580, 22540, 25290, 28000, 31920, 34830, 37840, 44100, 47206, 122200, 131000, 140500, 152600, 163000, 173600, 188100, 195200, 851800, 895161
Periodic position
Group: 8
Period: 4
xpos: 8
ypos: 4
Spectral/Bohr images
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3D Model