What is the Percentage of Nitrogen in the Atmosphere?

By BYJU'S Exam Prep

Updated on: November 9th, 2023

The percentage of nitrogen in the atmosphere is 78%. It has the atomic number 7 and is a chemical element with the symbol N. It is a colorless, odourless, tasteless gas. The chemical industry depends on nitrogen. It is used to create explosives, nylon, nitric acid, fertilisers, and dyes. Nitrogen must first be combined with hydrogen to create ammonia in order to create these products. The Haber process is used for this.

Percentage of Nitrogen in Atmosphere

It is a non-metal and the lightest member of group 15 of the periodic table. It has seven electrons. In the human body, 3% nitrogen is present by mass which makes it the fourth most abundant element in the body after oxygen, carbon, and hydrogen. Nitrogen was discovered by Scottish physician Daniel Rutherford in 1772. The atomic mass of Nitrogen is 14.0067 u.

  • The soils and plants, as well as the water we drink and the air we breathe, all contain nitrogen.
  • A crucial DNA building block, which determines our genetic makeup, is also necessary for plant growth, making it essential for the food we grow.
  • Low concentrations of nitrogen may initially cause a slight cough and shortness of breath; however, after several hours to days, Bronchospasm and Pulmonary Edema may occur in the victims.
  • Very high concentrations of nitrogen can quickly result in burns, spasms, throat tissue swelling, upper airway obstruction, and death.


What is the Percentage of Nitrogen in the Atmosphere?

78% percent of nitrogen is present in our atmosphere. It is a chemical element with the symbol N and the atomic number 7. It is a tasteless, flavourless, and colorless gas. On nitrogen, the chemical industry depends. On the other hand, the percentage of other important gases is 21% oxygen, 0.9% argon, and 0.1% other gases.

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