Question

The magnitude of charge on the electron is 4.0 x 10^-10esu. What is the charge on the nucleus of a helium atom?

Answer 1

Number of protons in He = 2

Charge of proton is same as that of an electron

\(\therefore\) Charge on the nucleus of He-atom

= (+2) × 4.0 × 10⁻¹⁰

= 8.0 × 10⁻¹⁰ esu