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The valency of nitrogen in N2 molecule is:


Options:
A .   1
B .   2
C .   3
D .   4
Answer: Option C
:
C

Valency is the combining capacity of the element.
Nitrogen has atomic number 7. Electronic configuration of nitrogen can be written as:
N=1s2,2s2,2p3
It has 5 electrons in its outermost shell and requires 3 more electrons in order to complete its L shell. Hence its valency is 3.



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