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Question
Which element has the largest atomic size in the second period?
Which element has the largest atomic size in the second period?
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Solution
The correct option is C Li
Li is the first element of the second period. The size of atoms decreases in the period from left to right because of the increase in effective nuclear charge. So, Li is the largest atom in the second period.
Li
Li is the first element of the second period. The size of atoms decreases in the period from left to right because of the increase in effective nuclear charge. So, Li is the largest atom in the second period.
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