Whats the smallest particle of an atom?

Answer 1

Smallest particles in an atom are named as subatomic particles. They have been categorized into four. They are photons, leptons, mesons and baryons.

Baryons are further classified into nucleon and hyperon.

Photon is the smallest one whose rest mass is zero. Though it does not have mass, it has momentum. The energy content of a photon is mainly decided by the frequency of the radiation. So E = h v. v (nu) is the frequency

Leptons are some how heavier but lighter than mesons. Electrons, positrons, neutrino, muons all come under this category

Mesons have different types such as pi meson, eta meson, k meson etc

Baryons have nucleons (protons and neutrons) and hyperons. (much heavier than nucleon)

Apart from these there are strange particles and these are being studied and science now and then comes across new discoveries of subatomic particles. So far more than 100 particles have been discovered.

Answer 2

MOLECULE

With a mass of about 9.10938215×10−31 kg. (0.510998910 MeV), Electrons are one of the smallest known particles in atoms but they are composed of quark particles.....

considering the fundamental particles- nutrinos MAY BEthe smallest particle :-(

Answer 3

the smallest part of an atom is the Quark.

Answer 4

The smallest particle of an atom is the electron. Electrons are negatively charged subatomic particles that orbit the nucleus of an atom.