By: Dorothiyen Lopez


Nitrogen gets its name by the Greek words nitron and genes. Together they both mean "saltpetre forming."

Symbol: N

Atomic number: 7

Mass number: 14.0067

Melting point: -346°F (-210°C)

Boiling point: -320.4°F (-195.8°C)

Density of Nitrogen: 1.251 g/l

Abundance of Nitrogen in the Earth's crust: 0.002%

How was Nitrogen discovered

Nitrogen was discovered by the Scottish physician Daniel Rutherford in 1772. He removed carbon dioxide and oxygen from the air and showed the residual gas would not support combustion or living organisms.

Facts about Nitrogen

*Nitrogen Makes up about 78.05% of Earths atmosphere by volume.

*It is also believed to be the seventh most abundant element in the universe.

*Which also contains an estimated 4,000 trillion tons of the gas.

*Mars contains about 3% of Nitrogen.

Uses for Nitrogern

Nitrogen gases are used to provide an unreactive atmosphere. It's used this way to preserve food and large quantities of nitrogen are use in annealing stainless steel and other steel mill products.

Nitrogen's period and family

Nitrogen's family is in group 15, and nitrogen's period extends from 2 to 6.