Question

The magnitude of the charge in coulombs on an electron is:
(A) $1.76\times {{10}^{11}}$
(B) $1.6\times {{10}^{-19}}$
(C) $9.1\times {{10}^{11}}$
(D) None of these

Answer 1

Hint: The electron is a subatomic particle that has a negative electrical charge of one elementary charge. The total negative charge that balances the total positive charge of the atoms is encrypted by all the electrons in the atoms.

Complete step by step solution:
We know that the magnitude of charge in coulombs on the electron is $1.6\times {{10}^{19}}$negative Since the electron is a subatomic particle with a negative charge whose mass is $9.1\times {{10}^{-31}}\,kg$The electron mass is 1000 times smaller than the proton mass, which is the same sum as the positively charged subatomic particle $1.6\times {{10}^{-19}}$. Elementary charge is the constant basic electrical charge and is borne by protons and electrons with a charge of protons of $+1.6\times {{10}^{-19}}$ and a charge of electrons of$-1.6\times {{10}^{-19}}$

So, option(B)$1.6\times {{10}^{-19}}$ is the right one.

Additional information:
An atom is composed of protons, neutrons, and electrons, while quarks are further divided into protons and neutrons. As neutrons are neutral particles, the nucleus is the core of an atom in which neutrons and protons reside, so the nucleus is positively charged by protons. The neutrons and protons are classified collectively as nucleons. In fixed orbits that are determined according to Bohr's quantum model, electrons are said to revolve around the nucleus. The whole of the atom is electrically neutral, that is, it has no charge since it is equal to the total number of protons and electrons.

Note: The electron is an elementary particle, unlike protons and neutrons that can also consist of three quarks, which means that it can not be further divided. The particles which make up an atom are known as the elementary particles.