How do I calculate the expectation value of the potential energy for Li 2+ ? I k

Question

How do I calculate the expectation value of the potential energy for Li2+? I know that for the H atom with no charge <PE> is ?e2/(4??0a0). The book's answer key says that it should be equal to 1.308x 10-17 J, but that is incorrect.

Problem 21.13 Part A The The ground state wave function of L12+ nuclear charge 1/2 (Z/a0) 3/2e Li2 Zr/ao where Z is the Calculate the expectation value of the potential energy for Li Express your answer to four significant figures and include the appropriate units. is

Explanation / Answer

Look , here we See Li +2 which is one electron system . and you will gate the same value for potential energy what you got for H atom. which is also 1 e system . your book ans is seems to be wrong.

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