Element overview
Arsenic (As) is element 33 with a listed atomic mass of 74.921595 u. It is in group 15 and period 4. Its category is metalloid.
Atomic properties
Electron configuration: not listed. Electronegativity: not established. Common oxidation states: not listed.
Physical properties
Density: not listed; melting point: not listed; boiling point: not listed. Values depend on conditions, phase and source.