26  Iron

 H                                                  He
 Li Be                               B  C  N  O  F  Ne
 Na Mg                               Al Si P  S  Cl Ar
 K  Ca Sc Ti V  Cr Mn[Fe]Co Ni Cu Zn Ga Ge As Se Br Kr
 Rb Sr Y  Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I  Xe
 Cs Ba La Hf Ta W  Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
 Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
                                                      
       Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu      
       Th Pa U  Np Pu Am Cm Bk Cf Es Fm Md No Lr      

+--------------------+
| 26   _____         |
|     |  ___|__      |
|     | |_ / _ \     |
|     |  _|  __/     |
|     |_|  \___|     |
|                    |
|        Iron        |
|       55.84 u      |
+--------------------+

Electron Configuration: [Ar]4s2 3d6
Electronegativity:      1.83
Atomic Radius:          194 pm
Ionization Energy:      7.902 eV
Electron Affinity:      0.163 eV
Oxidation States:       +3, +2
Standard State:         Solid
Melting Point:          1811 K
Boiling Point:          3134 K
Density:                7.874 g/cm3
Family:                 Transition metal
Year Discovered:        Ancient
Number of Neutrons:     30
Number of Protons:      26
Number of Electrons:    26
Number of Valence:      
Valency:                
Group:                  8
Period:                 4
Shell:                  d-shell
Specific Heat:          0.449 J/g K
Radioactive:            0
Occurrence:             Natural
Source:                 White dwarf supernovae