Question

Name the sub-atomic particles present in an atom.

• A. Electrons
• B. Protons
• C. Neutrons
• D. Molecules

Answer 1

Answer: (A), (B), (C)

The correct options are
A Electrons
B Protons
C Neutrons

Atoms are made up of smaller particles called sub-atomic particles. The sub-atomic particles in an atom are electrons, protons, and neutrons.

• Electrons have a negative charge. It has a mass of about $\frac{1}{1836}$ times the mass of a proton.
• Proton is a subatomic particle found in the nucleus of every atom. The particle has a positive electrical charge, equal and opposite to that of the electron. If isolated, a single proton would have a mass of only $1.673\times {10}^{-27}$ kilogram, slightly less than the mass of a neutron. The number of proton in an element's nucleus is called the atomic number.
• Neutron is a subatomic particle found in the nucleus of every atom except that of a simple hydrogen atom. The particle derives its name from the fact that it has no electrical charge; it is neutral.