Nitrogen is a chemical element with symbol N and atomic number 7. It is the
lightest pnictogen and at room temperature, it is a transparent, odorless diatomic
Dec 22, 2014 ... Nitrogen is essential to life on Earth. It is a component of all proteins and it can be
found in all living systems. Nitrogen compounds are present ...
Nitrogen is a Group 15 element. Nitrogen makes up about 78% of the
atmosphere by volume but the atmosphere of Mars contains less than 3%
In chemistry laboratories, liquid nitrogen is often stored in large thermos-like
containers called "dewars." It boils at minus 195.8°C (-321 F) and is used for
About four-fifths of Earth's atmosphere is nitrogen, which was isolated and
recognized as ... Nitrogen first was considered a chemical element by Antoine-
Basic information, atomic structure, and table of isotopes.
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Nitrogen definition, a colorless, odorless, gaseous element that constitutes about
four-fifths of the volume of the atmosphere and is present in combined form in ...
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Triton's nitrogen geysers push black particles miles above the surface. These are
blown by winds on Triton and form black deposits on the satellite's surface.