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What atomic number of an element "X" wou...

What atomic number of an element "X" would have to become so that the 4th orbit around X would fit inside the I Bohr orbit of H atom ?

A

`3`

B

`4`

C

`16`

D

`25`

Text Solution

Verified by Experts

The correct Answer is:
3
`r_(1)=0.529 Å, r_(4(X))=r_(1)xxn^(2)/Z,`
`e_(4(X))rArr (0.529xx(4)^(2))/(Z),Z=16`
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