1.

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

Answer»

`H^+ (n=2)`
`LI^(2+) (n=2)`
`Li^(2+) (n=3)`
`Be^(3+) (n=2)`

SOLUTION :`(n_1^2)/(Z_1) = (n_2^2)/(Z_2)`


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