an element X of group 15 and period 2 exists as diatomic molecule. it combines with H2 and forms NH3 in the presence of a suitable catalyst. Identify the element X.write the electronic configuration of X and count the no. of valence electrons.
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the elements X IS NITROGEN and electronic configuration is 2,5
and valence electron is 5
valency is 3
and valence electron is 5
valency is 3
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the element is nitrogen because its valancy is 5 and has two shells
2,5
2,5
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