28  Nickel

 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      

+--------------------+
| 28    _   _ _      |
|      | \ | (_)     |
|      |  \| | |     |
|      | |\  | |     |
|      |_| \_|_|     |
|                    |
|       Nickel       |
|      58.693 u      |
+--------------------+

Electron Configuration: [Ar]4s2 3d8
Electronegativity:      1.91
Atomic Radius:          163 pm
Ionization Energy:      7.640 eV
Electron Affinity:      1.156 eV
Oxidation States:       +3, +2
Standard State:         Solid
Melting Point:          1728 K
Boiling Point:          3186 K
Density:                8.912 g/cm3
Family:                 Transition metal
Year Discovered:        1751
Number of Neutrons:     31
Number of Protons:      28
Number of Electrons:    28
Number of Valence:      
Valency:                
Group:                  10
Period:                 4
Shell:                  d-shell
Specific Heat:          0.444 J/g K
Radioactive:            0
Occurrence:             Natural
Source:                 White dwarf supernovae