Atomic Number: | 84 |
Element Symbol: | Po |
Element Name: | Polonium |
Atomic Weight: | 209 |
Group Number: | 16 |
Group Name: | Chalcogen |
Period Number: | 6 |
Block: | p-block |
Ground State Configuration: | [Xe] 4f14 5d10 6s2 6p4 |
Ground State Level: | 3P2 |
Standard State: | Solid |
Common Valences: | 2,3,4,6 |
Bond Length: | 334.5 |
Atomic Radius Empirical: | 190 |
Atomic Radius Calculated: | 135 |
Electron Affinity: | 183.3 |
First Ionization Energy: | 812.1 |
Pauling Electronegativity: | 2.0 |
Allred Rochow Electronegativity: | 1.76 |
Mulliken Jaffe Electronegativity: | 2.48 |
Density Of Solid: | 9196 |
Molar Volume: | 22.97 |
Electrical Resistivity: | 43 |
Melting Point: | 254 |
Boiling Point: | 962 |
Enthalpy Of Fusion: | about 13 |
Enthalpy Of Vaporization: | about 100 |
Enthalpy Of Atmization: | 142 |
Most Common Oxidation Numbers: | 4,2,-2 |
Color: | Silvery |
Classification: | Metallic |
Discovered By: | Marie Curie |
Discovered At: | France |
Discovered When: | 1898 |
Origin Of Name: | Named after Poland (birthplace of Marie Curie) |
Calculate the molecular weight of Polonium or molecular weight Po.
Also see the full list of chemical elements and atomic weights.