Atomic Number: 8
Atomic Weight: 15.9994
Melting Point: 54.36 K (-218.79?C or -361.82?F)
Boiling Point: 90.20 K (-182.95?C or -297.31?F)
Density: 0.001429 grams per cubic centimeter
Phase at Room Temperature: Gas
Element Classification: Non-metal
Period Number: 2 Group Number: 16 Group Name: Chalcogen
Meaning: from oxys and gen, or acid forming. Most common element on earth which makes up 21% by volume of the atmosphere. A constituent of all living things to maintain life.
Discovery: 1774 by Joseph Priestly of Britain and Carl Wilhelm Scheele of Sweeden.
Uses: Air supply; Oxy-acetylene welding; Steele molding agent; Ozone