Question

CHEMISTRY - VII
PERIODIC PROPE
Passage type questions :
Valency is the combining capacity of an element and it is equal to number of valency electron
and S - number of valence electrons in non metals.
Valency electronic configuration of halogen family is
b) ns'np!
c) nsnp
d) nsnp
The common valency of VIIA group is
b) 2
a) ns.np
2.1​

Answer 1

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