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Calculate the velocity of an electron w...

Calculate the velocity of an electron which must be able to ionize a `Li^(2+)` in ground state.

A

`6.56xx16^6m//s`

B

`11.25xx10^9 m//s`

C

`3.45xx10^8 m//s`

D

`9.56xx10^7m//s`

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The correct Answer is:
A
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