Question

The energy of He⁺ ion in the first excited state will be-

• A. – 13.6 eV
• B. – 14.4 eV
• C. – 6.8 eV
• D. – 27.2 eV

Answer 1

Answer: (A)

– 13.6 eV

Answer 2

E = –13.6eV$\frac{2^{2}}{2^{2}}$ = – 13.6eVs