| Arsenic | |
| Elemental State | As |
| Electron Configuration | 1s22s22p63s23p63d104s24p3 |
| First Ionization Potential | 9.789 eV |
| Electron Affinity | 0.81 eV |
| Z* | 7.449 (Clementi-Raimondi) |
| Pauling Electronegativity | 2.18 |
| Covalent Radius | 1.20 Å |
| Metallic Radius | |
| Ionic Radius | 0.72 Å As3+ coordination number
= 6
0.475 Å As5+ coordination number = 4 0.60 Å As5+ coordination number = 6 |
| van der Waal's Radius | 1.85 Å |
| Melting Point | 817 oC (28 atm, gray) |
| Boiling Point | 614 oC sublimes |
| Density | 1.97 g/cm3 (yellow)
5.73 g/cm3 (gray) |
| Other Properties | |