Arsenic
METALLOID
Phase: Solid
Discovered: Bronze Age
Block: P
Summary
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.
Source: WikipediaPhysical Properties
Atomic Mass 74.9215956 u
Density 5.727 g/cm³
Melting Point N/A
Boiling Point N/A