Q.

The radius of hydrogen atom in the ground state is 0.53A°. Calculate the radius of Li2+ ion (atomic number = 3) in a similar state

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answer is 0000.17.

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Detailed Solution

For hydrogen atom (n) = 1 (due to ground state)Radius of hydrogen atom (R) = 0.53A°.Atomic number of Li (Z) = 3.Radius of Li2+ion = r1×n2Z=0.53×123=0.17
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