MCQ
Potential energy of an electron in the atom is
- A$Ze^2 / r$
- ✓$- Ze^2 / r$
- C$Ze^2 / r^2$
- D$- Ze^2 / r^2$
✓
Answer
Correct option: B.
$- Ze^2 / r$
b
Potential energy $=$ work done
Potential energy $=$ work done
$=\int_{\infty}^r-\frac{Z e^2 d r}{r 2}=-\frac{Z e^2}{r}$
Potential Energy $=\frac{-Z k_e e^2}{r}$
$k_e=$ coulomb $^{\prime} s$ constant
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