| Attribute | Value |
|---|---|
| Symbol | B |
| Standard state | Solid |
| Atomic mass | 10.81 u |
| Electron configuration | [He]2s²2p¹ |
| Oxidation states |
|
| Electronegativity (pauling scale) | 2.04 |
| Atomic radius (van der waals) | 192 pm |
| Ionization energy | 8.298 eV |
| Electron affinity | 0.277 eV |
| Melting point | 2348 K |
| Boiling point | 4273 K |
| Density | 2.37 g/cm³ |
| Atomic number | 5 |
| Group name | Metalloid |
| Discovered | 1808 year |