Oxygen

Basic properties of Oxygen

Oxygen is a chemical element number 8 in the periodic table. The symbol of Oxygen is O. The atomic weight of Oxygen is 15.994 and the melting point of Oxygen is -218.4 degree celcius. Oxygen has a boiling point of -182.962 degree celcius. Oxygen is a colorless, odorless, tasteless gas. In liquid form, oxygen is a pale blue liquid.

Oxygen is the most abundant element

Oxygen is the most abundant element by mass both in the earth 's crust and in the human body. Oxygen constitutes 89% of water by mass and 20.9% of air by volume (23% by mass). Oxygen also comprises 50% by mass of sand, clay, limestone, and igneous rocks that make up the bulk of the earth ' s crust.

Where does the name Oxygen come from?

The name Oxygen is taken from the Greek word oxys + genes meaning acid former.

Who discovered Oxygen?

Oxygen was discovered around 1772 by Carl Wilhelm Scheele and independently by Joseph Priestly in 1774. Antoine Lavoisier identified oxygen as a true element and gave it its present day name between the years 1775 and 1777.

• History of Oxygen
• Oxygen production
• Importance of Oxygen
• Ozone