| Arsenic ✕ | |
|---|---|
| Symbol | As |
| Atomic number | 33 |
| Chemical property | Metalloid |
| Origin o the name | English word (Latin arsenicum) |
| Group | 15 |
| Period | 4 |
| Atomic weight (u) | 74.921595 |
| Atomic weight uncertainty (u) | 0.000006 |
| Density (g/cm³) | 5.776 |
| Melting point (K) | 1090 |
| Boiling point (K) | 887 |
| Heat capacity (J/(g·K)) | 0.329 |
| Electro-negativity | 2.18 |
| Abundance in earth's crust (mg/kg) | 1.8 |