Q6 of 56 Page 1

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.

The configuration of element E is : 2, 8, 6

(a) Since it has 6 valence electrons. So, it will belong to group 6.


(b) Since element E has three valence shells, so it will belong to period 3.


(c) The number of valence electrons present in the element E is 6.


(d) The valency of element E is 2 because it requires 2 more electrons to complete its stable gas configuration.


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