Si
Silicon
Element 14 · Metalloid · Period 3, Group 14
Solid · Discovered 1854
Atomic Properties
| Atomic Number | 14 |
| Atomic Mass | 28.085u |
| Electron Configuration | [Ne]3s2 3p2 |
| Electronegativity | 1.9Pauling |
| Atomic Radius | 210pm |
| Ionization Energy | 8.152eV |
| Electron Affinity | 1.385eV |
| Oxidation States | +4, +2, -4 |
Physical Properties
| Standard State | Solid |
| Melting Point | 1687K |
| Boiling Point | 3538K |
| Density | 2.3296g/cm³ |
| Group Block | Metalloid |
| Year Discovered | 1854 |