- Atomic Radius (Å)
Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. Arsenic is a metalloid.
33
Atomic Number
74.92 u
Atomic Mass
1090.15 K
Melting Point
887 K
Boiling Point
5.73 g/cm³
Density
1.3 Å
Atomic Radius
1.19 Å
Covalent Radius
2.18
Electronegativity
9.79 eV
First Ionization Energy
77.65
Electron Affinity
4
Number of Shells
5
Electron Valency
2, 8, 18, 5
Electron Shell Occupations
0.33 J/g
Specific Heat