33 As 74.922

Arsenic

Category: Metalloid | State: Solid

Atomic Properties

Atomic Number 33
Atomic Mass 74.922
Electronic Configuration [Ar] 3d¹⁰ 4s² 4p³

Periodic Table Placement

Group 15
Period 4
Block p-block

Physical Properties & Discovery

Melting Point 817°C (at 3.8 MPa)
Boiling Point 614°C (sublimation)
Density 5.73 g/cm³
Discovered By Known to ancients (ancient)

Frequently Asked Questions about Arsenic