Question

16. Give reasons for the following:
1)Lithium atom is smaller than Sodium atom.
2)Chlorine (Atomic Number - 17) is more electronegative than Sulphur (Atomic
Number - 16)​

Answer 1

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First of all its Lithium :-P :-D

The reason is lithium and Sodium belong to same group 1. Now as we move down the group the size of shells increases, and hence Lithium has 2 shells and Sodium has 3 shells, that means more the smaller shells are, more they are small..hence Lithium atom is smaller than sodium atom.

Answer 2

hi buddy

here is your answer with easy and simple wording

HOPE IS WAS HELPFUL