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header-bg qa

On moving from left to right in a period in the periodic table, the size of the atom.

(a) increases
(b) decreases
(c) does not change appreciably
(d) first decreases and then increases

Answers (1)

Ans (b)
Sol

When move from left to right in a period the atomic radius decreases as the number of electrons are increasing in the outer most shell
which increases the nuclear forces among them.

Hence option (b) is correct.

Posted by

infoexpert27

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