I should like to direct a film, a chemistry film. In that film all the characters will be elements from periodic table. Most probably oxygen will be the hero and nitrogen will be the heroine. It is this wonderful chemistry behind oxygen and nitrogen sustains life in this earth. Oxygen is a gas responsible for combustion. You know the most abundant element in the atmosphere is nitrogen.78% of atmospheric air is comprised of nitrogen and the oxygen constitute 21%.This oxygen is having a tendency to ignite everything. Nitrogen provides an inert atmosphere and just like a wife reduces the strain of husband, nitrogen controlls oxygen. Really wonderful chemistry. I think god is a chemical engineer. This chemistry of oxygen and nitrogen is made use in many industries also. To avoid the risk of explosion we use nitrogen medium to provide an inert atmosphere. If there were no nitrogen, earth might had become a swirling sphere of fire. 78+21=99. What about the remaining 1% of atmosphere? Ya you are right. The inert gas (oh, sorry we cant refer 18 group element as inert gases now) Argon constitute the remaining 1%. The great chemists Sir William Ramsay and Lord Rayleigh discovered Argon. Discovery of Argon was a turning point in inorganic chemistry. This discovery catalysed the rate of discovering other noble gases. And a new group was introduced to Periodic table.
(note: in smaller ratio atmosphere also contains other particles,gases,water vapour etc)
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