Question

The mass of an electron is 1/1837 times that of a proton

• A. True
• B. False

Answer 1

The correct option is A True

The absolute mass of an electron =$9.109\times {10}^{-28}\mathrm{g}$

The absolute mass of a proton =$1.6725\times {10}^{-24}\mathrm{g}$

Protons are heavier than electrons. Electrons are negligible in mass $9.109\times {10}^{-28}\mathrm{g}$ when compared to protons and neutrons. The mass of a proton is $1.6725\times {10}^{-24}\mathrm{g}$, ​approximately 1837 times that of the electron.

$\frac{\mathrm{mass}\mathrm{of}\mathrm{an}\mathrm{electron}}{\mathrm{mass}\mathrm{of}\mathrm{a}\mathrm{proton}}=\frac{9.109\times {10}^{-28}\mathrm{g}}{1.6725\times {10}^{-24}\mathrm{g}}=\frac{1}{1837}$.

The mass of an electron is 1/1837 times that of a proton

Hence, the given statement is true.