# what is a subatomic particle is a subatomic particle protons, neutrons and electrons? or is the quarks? Sub atomic particles are electrons (e) protons (P) and neutrons (N).

Electrons are negatively charged and it revolves around the nucleus with mass = 9.109381 × 10-31 kilograms.

Protons are positively charged with mass = 1.672621×10-27 kg.

Neutrons have no charge with mass = 1.675 × 10-27 kg.

Both proton...

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Sub atomic particles are electrons (e) protons (P) and neutrons (N).

Electrons are negatively charged and it revolves around the nucleus with mass = 9.109381 × 10-31 kilograms.

Protons are positively charged with mass = 1.672621×10-27 kg.

Neutrons have no charge with mass = 1.675 × 10-27 kg.

Both proton and neutron constitute the nucleus of an atom.

Nucleus constitute mass of the atom.

Mass of atom (Z) = P + N

In a neutral atom number of electrons = number of protons.

Number of protons constitute the atomic number of an atom.

For example in carbon

Atomic number = 6

Number of electrons = 6

Number of protons = 6

Atomic mass = 12

Number of neutrons = Z - P = 12 - 6 = 6

Approved by eNotes Editorial Team