Oxygen (O)
- Atomic Number: 8
- Atomic Weight: 16.00
- Melting Point: -218.40
- Boiling Point: -184.96
- Specific Gravity: 1.14 (liquid)
- Valence(s): -2
Joseph Priestley is generally credited with discovering Oxygen in 1774.
It is the 3rd most abundant element in the universe.
Oxygen and its compounds make up 49.2% by weight of crust of the Earth.
Animals and plants cannot exist without Oxygen.
Oxygen is also responsible for combustion.
Ozone is a highly active form of Oxygen.
[LM]
{RW}
Web Pages that Work! Zeuter Development Corporation
Post Office Box 225, Parry Sound, Ontario, CANADA P2A 2X3
Copyright © Zeuter Development Corporation, 1996-2022. All rights reserved.