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The ionisation energy of He^(o+) is 19....

The ionisation energy of `He^(o+)` is `19.6 xx 10^(-18) J "atom" ^(-1)` .The energy of the first stationary state of `Li^(2+)` will be

A

`-4.41 xx 10^(-18) J " atom"^(-1)`

B

`-4.41 xx 10^(-17) J " atom"^(-1)`

C

`-4.41 xx 10^(-16) J " atom"^(-1)`

D

`-8.72 xx 10^(-18) J " atom"^(-1)`

Text Solution

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The correct Answer is:
B
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