Atomic Number 33     Atomic Mass 74.9215942     Density 5.727 g/mL     State solid    

Color metallic grey     Electronegativity 2.18     Natural Isotope As-75 100%

Abbreviated Electron Configuration [Ar] 3d¹⁰ 4s² 4p³

Discovered by Albertus Magmus in the 13th century.