MCQ
The energy of the electron in the first orbit of $He^+$ is $-871.6\times 10^{-20}\,J$. The energy of the electron in the first orbit of hydrogen would be
- A$-\,871.6\times 10^{-20}\,J$
- B$-\,435.8\times 10^{-20}\,J$
- ✓$-\,271.9\times 10^{-20}\,J$
- D$-\,108.9\times 10^{-20}\,J$