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Find the ratio of Li^(++) ions in its gr...

Find the ratio of `Li^(++)` ions in its ground state assuming Bohr 's model to be vaild

A

`53`pm

B

`27`pm

C

`18`pm

D

`13`pm

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Verified by Experts

The correct Answer is:
C
The atomic number of Lithium is `3`, therefore ,the radius of `Li(++)` ion its ground state , on the basis of Bohr's model will be about `1/3` times to that of Bohr's radius .
therefore , the radius of lithium ion is near `(53)/3approx`18Pm`
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