Overview |
Name | Polonium |
Symbol | Po |
Atomic Number | 84 |
Atomic Weight | 209[note] |
Density | 9.196 g/cm3 |
Melting Point | 254 °C |
Boiling Point | 962 °C |
Thermal properties |
Phase | Solid |
Melting Point | 254 °C |
Boiling Point | 962 °C |
Absolute Melting Point | 527 K |
Absolute Boiling Point | 1235 K |
Heat of Fusion | 13 kJ/mol |
Heat of Vaporization | 100 kJ/mol |
Heat of Combustion | N/A |
Specific Heat | N/A |
Thermal Conductivity | N/A |
Thermal Expansion | N/A |
Bulk physical properties |
Density | 9.196 g/cm3 |
Density (Liquid) | N/A |
Molar Volume | 0.000022727 |
Thermal Conductivity | N/A |
Thermal Expansion | N/A |
Reactivity |
Valence | 6 |
Electronegativity | 2 |
ElectronAffinity | 183.3 kJ/mol |
Ionization Energies | |
Health and Safety |
Autoignition Point | N/A |
Flashpoint | N/A |
|
Classifications |
Alternate Names | None |
Nams of Allotropes | AlphaPolonium, BetaPolonium |
|
Block | p |
Group | 16 |
Period | 6 |
Electron Configuration | [Xe]4f145d106s26p4 |
Color | Silver |
Discovery | |
Gas phase | N/A |
CAS Number | CAS7440-08-6 |
Electrical properties |
Electrical Type | Conductor |
Electrical Conductivity | 2.3×106 S/m |
Resistivity | 4.3×10-7 m Ω |
Superconducting Point | N/A |
Magnetic properties |
Magnetic Type | N/A |
Curie Point | N/A |
Mass Magnetic Susceptibility | N/A |
Molar Magnetic Susceptibility | N/A |
Volume Magnetic Susceptibility | N/A |
Abundances |
% in Universe | N/A |
% in Sun | N/A |
% in Meteorites | N/A |
% in Earth's Crust | N/A |
% in Oceans | 2×10-18% |
% in Humans | None |
Atomic dimensions and structure |
Atomic Radius | 135 pm |
Covalent Radius | N/A |
Van der Waals Radius | N/A |
Crystal Structure | Simple Cubic |
Lattice Angles | |
Lattice Constants | |
Space Group Name | Pm-3m |
Space Group Number | 221 |
Nuclear Properties |
Half-Life | 102.1 y |
Lifetime | 147.1 y |
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