Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Arsenic | |
| Electron Configuration | 2,8,18,5 |
| Electron Configuration | [Ar] 3d10 4s2 4p3 |
| Electronegativity | 2.18 |
| Enthalpy of Fusion | 27.7 kJ mol-1 |
| Enthalpy of Vaporisation | 31.9 kJ mol-1 |
| Heat Capacity | 24.64 J mol-1 K-1 |
| Thermal Conductivity | 50.2 W m-1 K-1 |
| Thermal Expansion | ? μm m-1 K-1 |
| Magnetic ordering | No data |
| Electrical resistivity | 333 Ω m |
| Young's modulus | 8 GPa |
| Bulk modulus | 22 GPa |
| Mohs hardness | 3.5 |
| Brinell hardness | 1440 MPa |
| Atomic Radii |
|
| Atomic Radius
|
115 pm |
| Bohr Radius
|
114 pm |
| Covalent Radius
|
119 pm |
| Van der Waals
|
185 pm |
| Oxidation States |
|
| Main
|
As+3, As+5 |
| Other
|
As-3 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
947 |
| M+ - M2+ |
1798 |
| M2+ - M3+ |
2735 |
| M3+ - M4+ |
4837 |
| M4+ - M5+ |
6042 |
| M5+ - M6+ |
12305 |
| M6+ - M7+ |
15400 |
| M7+ - M8+ |
18900 |
| M8+ - M9+ |
22600 |
| M9+ - M10+ |
26400 |
| Covalent Bonds (kJ mol-1) |
|
| As-H
|
245 |
| As-C
|
200 |
| As-O
|
477 |
| As-F
|
464 |
| As-Cl
|
293 |
| As-As
|
348 |