![]() Under normal conditions, nitrogen is a colorless, odorless and tasteless gas. Nitrogen is a poor conductor of heat and electricity. ![]() Nitrogen is the most common uncombined element on earth. In fact, it is the fourth most abundant element (after oxygen, carbon, and hydrogen) in the human body by mass. Nitrogen is also present in the human body. It is the lightest member of group 15 of the periodic table. Almost all (99%) of the nitrogen in the universe is nitrogen-14. Nitrogen has two stable isotopes: nitrogen-14 and nitrogen-15. The nitrogen cycle is one of the most important processes in nature for living organisms. Thus, the credit for the discovery of the element is generally given to him. Rutherford removed oxygen and carbon dioxide from the air and showed that the remaining gas in the air would not support combustion or living organisms. Scottish chemist Daniel Rutherford isolated nitrogen for the first time in 1772. Nitrogen is commercially produced by the fractional distillation of air. Composition of air by gases and their percentage weight Name of the gasĥ. Comparatively, oxygen comprises approximately 21% of the earth’s atmosphere. By volume, nitrogen gas makes 78.09 %, and by weight, it makes 75.51% of the atmosphere. It is the sixth most abundant element in the cosmos. The chemist realized that the gas was a part of a chemical compound then called niter, which we now refer to as potassium nitrate. Nitrogen which is a non-metal was named nitrogen by a French Chemist Jean-Antoine-Claude Chaptal in 1790. ![]() With these facts about nitrogen, let us learn about its chemistry, physical properties, atomic mass, and much more.ġ. Nitrogen is a chemical element with atomic number seven and atomic weight 14. ![]()
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