1.

The ratio of radius of 4th orbit of hydrogen and 3rd orbit of Li^(2+) is

Answer»

`256:9`
`9:16`
`16:3`
`32:9`

SOLUTION :`r_(N)=(0.059n^(2))/Z`
`r_(4)(H)=(0.059xx16)/1`
`r_(3)(Li^(2+))=(0.059xx9)/3, (r_(4)(H))/(r_(3)(Li^(2+)))=16/3`


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