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Find the valency of 147N and 3517Cl.
147N
The atomic number of nitrogen = 7,
No. of protons = 7,
No. of electrons = 7
Electronic configuration = K L
2 5
Valency = 3
Hence, either it will gain three electrons or share 3 electrons to complete its octet.
3517Cl.
The atomic number of chlorine = 17,
No of protons = 17,
No of electrons =17
Electronic configuration = K L M
2 8 7
Valency = 1
Hence, it will gain 1 electron to complete its octet.
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