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Trends in Modern Periodic Table

The correct o...

Question

The correct order for decreasing atomic radius of the five atoms H, Br, I, He and S is?

A

I > Br > S > He > H

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B

I > S > Br > H > He

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C

I > S > Br > He > H

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D

Br > I > S > He > H

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Solution

The correct option is A I > Br > S > He > H
Atomic radius decreases across a period and increases down a group.

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