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When hydrogen atom is in its first excit...

When hydrogen atom is in its first excited level, its radius is ______ of the Bohr radius.

A

twice

B

4 times

C

same

D

half

Text Solution

Verified by Experts

The correct Answer is:
B
For first excited level, n = 2
`r_(2) = (2)^(2) r_(0) = 4r_(0)`
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