Which subatomic particle has the least mass?

Subject : Chemistry

Question: Which subatomic particle has the least mass?

Expert Verified Solution:

The subatomic particle with the least mass is the electron.

Electrons are negatively charged particles that orbit the nucleus of an atom. They have a much smaller mass compared to protons and neutrons.

Protons and neutrons, which reside in the nucleus of an atom, have roughly the same mass, which is significantly greater than the mass of electrons.

The mass of an electron is approximately 1/1836 the mass of a proton or neutron, making it the lightest of the three primary subatomic particles.

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