Question

An element E has following electronic configuration: K L M 2 8 6 (a) To which group of the periodic table does element E belong?(b) To which period of the periodic table does element E belong?(c) State the number of valence electrons present in element E.(d) State the valency of the element E.

Answer 1

15 th group
3rd period
6 is the valence electron
2 is the valency 
e is Sulphur s

Answer 2

a) 16th group

b) 3rd period

c) 6

d) 8-6=2

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