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The radii of the first Bohr orbit of H (...

The radii of the first Bohr orbit of H `(r_H), He^+ (r_(He^+))` and `Li^(2+) (r_(Li)^(2+))` are in the order

A

`r_(He)^(+)gtr_(H)gtr_(Li)^(2+)`

B

`r_(H)ltr_(He)^(+)ltr_(Li)^(2+)`

C

`r_(H)gtr_(He)^(+)gtr_(Li)^(2+)`

D

`r_(He)^(+)ltr_(H)ltr_(Li)^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
C
`r=0.529xxn^(2)/Z`
`rprop1/Z`
`therefore` order is `r_(H)gtr_(He)^(+)gtr_(Li)^(2+)`.
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