Nitrogen Elements Chemistry Science

Nitrogen was discovered in 1772 by Daniel Rutherford. Nitrogen makes up 78% of the Earth's air. Nitrogen is found in all living systems as a component of biological compounds.

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• Wikipedia: Nitrogen - Article detailing physical properties, history, applications, characteristics and nitrogen safety precautions.
• ChemicalElements.com: Nitrogen - Features properties, an atomic structure diagram, facts about nitrogen and elements a table of isotopes.

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