Sb
Antimony
Element 51 · Metalloid · Period 5, Group 15
Solid · Discovered Ancient
Atomic Properties
| Atomic Number | 51 |
| Atomic Mass | 121.76u |
| Electron Configuration | [Kr]5s2 4d10 5p3 |
| Electronegativity | 2.05Pauling |
| Atomic Radius | 206pm |
| Ionization Energy | 8.64eV |
| Electron Affinity | 1.07eV |
| Oxidation States | +5, +3, -3 |
Physical Properties
| Standard State | Solid |
| Melting Point | 903.78K |
| Boiling Point | 1860K |
| Density | 6.685g/cm³ |
| Group Block | Metalloid |
| Year Discovered | Ancient |