Nitrogen is an element with a mass of 14.0067 u that exists as a gas with a melting point of 63.14 K and boiling point of 77.53 K. It was discovered in 1772 by Daniel Rutherford and is commonly used in place of air for inflating tires and wheels in developed countries due to its high efficiency.

1. 7
Nitrogen -
Nitrógeno
Mass: 14,0067 u
(He) 2s2
2p3
Melting point: 63,14 K
Boiling point: 77,53 K
Density: 0,81 g/cm3
Discovery: Daniel Rutherford, 1772
At present, nitrogen is used in various
tasks, in developed countries one of the latest and most
common is to be used in place of common air for inflating tires
and wheels due to the high efficiency that result from its use.