If radius of second Bohr orbit of the \( \mathrm{He}^{+} \)ion is \( 105.8 \mathrm{pm} \), what ...

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If radius of second Bohr orbit of the \( \mathrm{He}^{+} \)ion is \( 105.8 \mathrm{pm} \), what is the radius of third Bohr orbit of \( \mathrm{Li}^{2+} \) ion?
(1) \( 158.7 \AA \)
(2) \( 158.7 \mathrm{pm} \)
(3) \( 15.87 \mathrm{pm} \)
(4) \( 1.587 \mathrm{pm} \)
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