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Which is the correct order of atomic radii?

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Which is the correct order of atomic radii?
A. `Mg lt Al lt Na lt K`
B. `Al lt Mg lt Na lt K`
C. `K lt Na lt Mg lt Al`
D. None of these
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1 Answer

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Correct Answer - B
In a period , as we move from left to right atomic size decreases.
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