There are three hydrogen atoms and a nitrogen atom in a molecule of ammonia. Mention the formula of ammonia and determine the valency of the nitrogen atom in it.
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As Valency of Nitrogen is 3 and Hydrogen is 1, NH3 is the compound formula.
Valency of Nitrogen atom in compound is 8 (after compound formation)
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Ammonia which is NH_3 , One atom of nitrogen combines with 3 atoms of hydrogen. The valency of nitrogen is 3 because it needs 3 atoms of hydrogen to form ammonia. Magnesium has valency equal to 2^+ because the electronic configuration of Mg is [2,8,2].
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