The energy of an electron in the ground state (n=1) for He⁺ ion is -x J, then that for an electron in n=2 state for Be³⁺ ion in J is:

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Chemistry

Structure of Atom

The energy of an electron in the ground state $(n=1)$ for $\mathrm{He^+}$ ion is $-x\,J$ , then that for an electron in $n=2$ state for $\mathrm{Be^{3+}}$ ion in J is:

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