The fundamental particles in an atom are protons, neutrons and electrons.
i. Protons(p) = Proton is the positively charge fundamental particle and is resides in the nucleus. The positive charge of proton(p+) is of the same magnitude as that of electron’s negative charge(e-).
ii. Neutron(n) = Neutron has no charge and is also resides in the nucleus. The mass of a neutron is almost equal to that of proton.
iii. Electron(e-) = Electron is a negatively charge fundamental particle and it moves around the nucleus in particular orbits.
Representation of fundamental particles of an atom
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