What are the three basic subatomic particles?


Updated: 25th November 2019

List the 3 main types of subatomic particles and indicate the mass and electrical charge of each. Describe the basic structure of the atom and be able to define the following terms: nucleus, energy level, isotope, and ion. ∎ Atoms are composed mainly of protons, neutrons, and electrons.

In respect to this, what is an example of a subatomic particle?

Composite subatomic particles (such as protons or atomic nuclei) are bound states of two or more elementary particles. For example, a proton is made of two up quarks and one down quark, while the atomic nucleus of helium-4 is composed of two protons and two neutrons.

What are the masses of the three subatomic particles?

The Three Major Subatomic Particles
NameSymbolMass (g)
ProtonP+1.673 x 10-24
Neutronn01.675 x 10-24
Electrone9.109 x 10-28
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