Nitrogen : The unreactive gas

One of the most useful gases for freezing food. Discover nitrogen’s properties and applications here.

Nitrogen is unreactive and liquid nitrogen is very cold: -196 Celsius. These properties are vital to a wide range of industrial applications.

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Solutions of nitrogen

Gas school

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Nitrogen - Properties

Symbol:
N

Atomic number:
7

Relative atomic mass:
14

Electronic configuration:
1s² 2s²2p³

Molecular formula:
N₂

Relative molecular mass:
28

Boiling point:
77 K

Key properties:
Unreactive gas, liquid nitrogen is very cold.

Some major uses:
Freezing food, shrink-fitting metal parts, producing chemicals safely, food packaging, manufacturing ammonia.

Discoverer:
Daniel Rutherford (1772)

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Nitrogen - In the air

The table and pie chart show the amounts of the three main gases in dry air.

Gas % in the air
Nitrogen, N2 78.08
Oxygen, O2 20.95
Argon, Ar 0.93
Other gases 0.04

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Nitrogen - Liquid

Nitrogen is usually stored as a liquid at very low temperatures. One volume of liquid nitrogen gives 651 volumes of gaseous nitrogen at 100,000 Pa and 273 K.
It would be dangerous to use liquid nitrogen without taking proper safety precautions like using special gloves, jackets and safety glasses.

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Nitrogen : The unreactive gas

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Nitrogen - Properties

Nitrogen - In the air

Nitrogen - Liquid

Nitrogen -

Nitrogen -

Nitrogen - Panta

Nitrogen - Hafa samband

Symbol:	N
Atomic number:	7
Relative atomic mass:	14
Electronic configuration:	1s² 2s²2p³
Molecular formula:	N₂
Relative molecular mass:	28
Boiling point:	77 K
Key properties:	Unreactive gas, liquid nitrogen is very cold.
Some major uses:	Freezing food, shrink-fitting metal parts, producing chemicals safely, food packaging, manufacturing ammonia.
Discoverer:	Daniel Rutherford (1772)