Calculate the ratio of the radius of \( \mathrm{Be}^{3+} \) ion in second energy level to that o....

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Calculate the ratio of the radius of \( \mathrm{Be}^{3+} \) ion in second
P
energy level to that of \( \mathrm{Li}^{2+} \) ion in the third energy
W
level.
(1) \( 1: 2 \)
(2) \( 1: 3 \)
(3) \( 16: 27 \)
(4) \( 3: 1 \)


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