84  Polonium

 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      

+--------------------+
| 84  ____           |
|    |  _ \ ___      |
|    | |_) / _ \     |
|    |  __/ (_) |    |
|    |_|   \___/     |
|                    |
|      Polonium      |
|     208.98243 u    |
+--------------------+

Electron Configuration: [Xe]6s2 4f14 5d10 6p4
Electronegativity:      2
Atomic Radius:          197 pm
Ionization Energy:      8.417 eV
Electron Affinity:      1.9 eV
Oxidation States:       +4, +2
Standard State:         Solid
Melting Point:          527 K
Boiling Point:          1235 K
Density:                9.32 g/cm3
Family:                 Metalloid
Year Discovered:        1898
Number of Neutrons:     126
Number of Protons:      84
Number of Electrons:    84
Number of Valence:      6
Valency:                2
Group:                  16
Period:                 6
Shell:                  p-shell
Specific Heat:          
Radioactive:            1
Occurrence:             Natural
Source:                 Radioactive decay