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नाइट्रोजन (Nitrogen), भूयाति या नत्रजन एक रासायनिक तत्व है जिसका प्रतीक N है। इसका परमाणु क्रमांक 7 है। सामान्य ताप और दाब पर यह गैस है तथा पृथ्वी के वायुमण्डल का लगभग 78% नाइट्रोजन ही है। यह सर्वाधिक मात्रा में तत्व के रूप में उपलब्ध पदार्थ भी है। यह एक रंगहीन, गंधहीन, स्वादहीन और प्रायः अक्रिय गैस है। इसकी खोज 1773 में स्कॉटलैण्ड के वैज्ञनिक डेनियल रदरफोर्ड ने की थी।

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  • The seventh element of the periodic table between carbon and oxygen is Nitrogen.
  • It’s an important part of amino acids.
  • Around eighty percent of the Earth’s atmosphere comprises nitrogen gas.
  • It has no colour, mostly diatomic non metal gas along with odourless and colourless in nature.
  • Since it has five electrons in its outer shell, most of its compounds are trivalent.
  • It is a constituent of all living tissues. Since it is a component of DNA and part of a genetic code, it is an essential element of life.
  • It is found in nitrates and nitrites in soil and water.
  • All these substances are part of the nitrogen cycle and interconnected. Industrial companies emit nitrogen extensively, increasing nitrite and nitrate content in the ground and water, being the consequence of reactions in the nitrogen cycle.

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