The potential energy of the electron present in the ground state of Li2+ ion is represented by

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+3e24π∈0 r

−3e4π∈0 r

−3e24π∈0 r2

−3e24π∈0 r

answer is D.

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Detailed Solution

P.E=−ze2r If a medium is present between e and nucleus. P.E=−kze2r =−14π∈0ze2r =−ze24π∈0rbut z=3 P.E=−3e24π∈0r

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