Q1 of 60 Page 1

The atomic numbers of three elements A, B and C are 12, 18 and 20 respectively. State, giving reason, which two elements will show similar properties.

The electronic configuration of elements will be as follows:

A – 2, 8, 2


B - 2, 8, 8


C – 2,8,8,2


Since Elements A and C poses same number of valence electrons and therefore, they will have similar properties.


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