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  • Arrange the following elements in increasing order of their atomic radii. (a) Li, Be, F, N (b) Cl, At, Br, I

Arrange the following elements in increasing order of their atomic radii.
(a) Li, Be, F, N
(b) Cl, At, Br, I

Answers (1)

(a) Li, Be, F, N

All the elements above belong to same period (2nd Period) and when we move from left to right in a period, the atomic radius decreases.

F<N<Be<Li

 (b) Cl, At, Br, IAll the elements above belong to same group (17th Group) and
when we move from top to bottom in a group the atomic radius increases.
Cl <Br < I< At

Posted by

infoexpert27

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