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The radius of which of the following orb...

The radius of which of the following orbit is same as that of the first Bohr ' s orbit of hydrogen atom.

A

`He^(+)` (n=2)

B

`Li^(2+)` (n=2)

C

`Li^(2+)(n=3)`

D

`Be^(3+) (n=2)`

Text Solution

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The correct Answer is:
D
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