An electron is accelerated from rest through a potential difference of . Which of the following stat — Atomic Structure Chemistry Question

💡 Solution & Explanation

When an electron is accelerated by a potential difference $V$, its kinetic energy is $eV$, so here $K.E. = 100 \text{ eV}$. The wavelength for an electron is $\lambda = \sqrt{\frac{150}{V}} \text{ \AA}$, which is $\sqrt{1.5} \text{ \AA} \approx 1.225 \text{ \AA}$. Its momentum is $p = \sqrt{2m(K.E.)}$. Acceleration does not negate its wave behavior; both particle and wave natures co-exist.