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If the atom(100)Fm^(257) follows the Boh...

If the atom`(_100)Fm^(257)` follows the Bohr model the radius of `_(100)Fm^(257)` is `n` time the Bohr radius , then find `n` .

A

100

B

200

C

4

D

`1//4`

Text Solution

Verified by Experts

The correct Answer is:
D
`(r_(m))=(m^(2)/z) (0.53 Å)=(nxx0.53)Å :. m^(2)/z=n`
`m=5` for `._(100)Fm^(257)` (the outermost shell) and `z=100`
`:. N=((5)^(2))/(100)=1/4`
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