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Question

Among the elements Ca, Mg, P and Cl there order of increasing atomic radii is


A

Mg < Ca < Cl < P

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B

Cl < P < Mg < Ca

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C

P < Cl < Ca < Mg

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D

Ca < Mg < P < Cl

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Solution

The correct option is B

Cl < P < Mg < Ca


Across the period, atomic radii decreases and across the group, atomic radii increases.


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