Atoms & Molecules


The smallest parts of an atom are fermions, the elementary particles that form the subatomic components in every atom. Atoms, the smallest particle of an element that still retains the properties of the element, are composed of protons, neutrons and electrons. Protons and neutrons can be broken down further into quarks, one type of fermion. Electrons are a class of leptons, the other type of fermion.

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