Attribute | Value |
---|---|
Symbol | Pa |
Standard state | Solid |
Atomic mass | 231.03588 u |
Electron configuration | [Rn]7s²5f²6d¹ |
Oxidation states |
|
Electronegativity (pauling scale) | 1.5 |
Atomic radius (van der waals) | 243 pm |
Ionization energy | 5.89 eV |
Melting point | 1845 K |
Density | 15.37 g/cm³ |
Atomic number | 91 |
Group name | Actinide |
Discovered | 1913 year |
Electron affinity | Add |
Boiling point | Add |