Assertion :Shielding effect increases as we go down the group. Reason: More is the number of electrons in the penultimate shell, more is the shielding.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Complete electron shells shield the nuclear charge very effectively. On moving down the group, the number of complete electron shells increases. Also, the nuclear core is farther removed from the valence electrons.

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Similar questions

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