Properties | |
| Atomic Number: | 33 |
| Atomic Weight: | 74.9216 |
| Electron Configuration (at ground state): | 1s22s22p63s23p63d104s24p3 |
| Oxidation States (Bold most stable): | -3, +3, +5 |
| Boiling Point (K): | 876 (sublimes) |
| Melting Point (K): | 1090 (28 atm) |
| Density (at 300K -- g/cm3): | 5.78 |
| Atomic Volume (at 300K -- cm3/mol) | 13.10 |
| Number of stable isotopes: | 1 |
| Mass Number (Bold naturally occurring) -- Half-Life -- Disintigration Type: |
73 -- 80.3 days -- orbital electron capture 74 -- 17.9 days -- beta particle (electron) emission, positron emission, orbital electron capture |
| Covalent Radius (Å): | 1.20 |
| Atomic Radius (Å): | 1.39 |
| First Ionization Potential (V): | 9.81 |
| Electronegativity (Pauling's): | 2.18 |
| Specific Heat Capacity (at 300K -- J g-1 K-1): | 0.33 |
| Heat of Vaporization (kJ/mol): | 32.4 |
| Heat of Fusion (kJ/mol): | 27.7 |
Electrical Conductivity (at 293K for polycrystalline material -- 106  -1 cm-1): |
3.8 |
| Thermal Conductivity (at 300K -- W m-1 K-1): | 50 |
| Crystal Structure: |  Rhombohedral |
| Acid-Base Properties: |  Slightly acidic |