Sulfur or sulphur is a chemical element with symbol S and atomic number 16. It is abundant, multivalent, and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules.

Atomic Weight:  30.973761998
Density:        1.823 g/cm3
Melting Point:  44.2 °C
 Boiling Point: 280.5 °C