Polonium |
Symbol | Po |
---|---|
Latin name | Polonium |
Atomic number | 84 |
Period | 6 |
Element category | Metals |
Relative atomic mass | 208.9824 |
Group | VI.A |
Electronegativity | 2.0 |
Oxidation numbers | 2, 4, 6 |
Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p4 |
Density [g/cm3] | 9.3 |
State | Solid |
Melting point [°C] | 254 |
Boiling point [°C] | 962 |
Atomic radius [pm] | 135 |
Thermal conductivity [W m-1K-1] | 20 |
Discovery | 1898 |
1.st ionization energy [eV] | 8.4167 |
Stable isotopes | 0 |
Unstable isotopes | 33 |