north atomic number 7 was isolated by the British medical examination student Daniel Rutherford in 1772 and recognized as an elemental squander by the French chemist Antoine Laurent Lavoisier about 1776. Properties Nitrogen is a colorless, odorless, tasteless, nonpoisonous gas. It provoke be condensed into a colorless liquid, which can in turn be compressed into a colorless, gauzy solid. Nitrogen exists in two natural forms of isotopes, and four radioactive isotopes thrust been artificially prepared. Nitrogen melts at -210.01° C (-346.02° F), boils at -195.79° C (-320.42° F), and has a density of 1.251 g/liter at 0° C (32° F). The atomic weight of atomic number 7 is 14.007.
Nitrogen is obtained from the atm by passing air over heat strapper or iron. The oxygen is removed from the air, leaving nitrogen compound with some inert gases. Pure nitrogen is obtained by incomplete evaporation of liquid air because liquid nitrogen has a lower boiling point than liquid oxygen, the nitrogen evaporates of...If you fate to get a full essay, order it on our website:
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