Question

The charge of electron and proton respectively are:

• A. $+1.6\times {10}^{-19}$ and $-1.6\times {10}^{-19}$
• B. $-1.6\times {10}^{-19}$ and $+1.6\times {10}^{-19}$
• C. $+9.1\times {10}^{-31}$ and $-9.1\times {10}^{-31}$
• D. $-1.6\times {10}^{-27}$ and $+9.1\times {10}^{-31}$

Answer 1

The correct option is B $-1.6\times {10}^{-19}$ and $+1.6\times {10}^{-19}$

Electrons and protons are the subatomic particles of an atom. Electrons are negatively charged and revolve around the nucleus. Protons are positively charged and are present in the nucleus.
The charge of an electron is $-1.6\times {10}^{-19}$ and the charge of proton is $+1.6\times {10}^{-19}$ coulomb (C).