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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)^+ gt r_H gt r_(Li)^(2+)`

B

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

C

`r_H gt r_(He)^+ gt r_(Li)^(2+)`

D

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

Text Solution

Verified by Experts

The correct Answer is:
C
`r= 0.529 xx (n^2)/(z)`
`r prop 1/z ` so correct orders is `r_H gt r_(He)^+ gt r_(Li)^(2+)`
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