83  Bismuth

 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      

+--------------------+
| 83    ____  _      |
|      | __ )(_)     |
|      |  _ \| |     |
|      | |_) | |     |
|      |____/|_|     |
|                    |
|       Bismuth      |
|     208.98040 u    |
+--------------------+

Electron Configuration: [Xe]6s2 4f14 5d10 6p3
Electronegativity:      2.02
Atomic Radius:          207 pm
Ionization Energy:      7.289 eV
Electron Affinity:      0.946 eV
Oxidation States:       +5, +3
Standard State:         Solid
Melting Point:          544.55 K
Boiling Point:          1837 K
Density:                9.807 g/cm3
Family:                 Post-transition metal
Year Discovered:        1753
Number of Neutrons:     126
Number of Protons:      83
Number of Electrons:    83
Number of Valence:      5
Valency:                3
Group:                  15
Period:                 6
Shell:                  p-shell
Specific Heat:          0.122 J/g K
Radioactive:            0
Occurrence:             Natural
Source:                 Merging neutron stars