- (A) protons and the nucleons
- (B) Neutrons
- (C) Electrons
- (D) Quarks
The nucleus or the core of the atom is populated by the protons and the nucleons. These two subatomic particles collectively determine the mass of the atom
Out of the choices provided, the tiny units that make up the core of an atom are:
(A) Protons and Neutrons
Both protons and neutrons reside in the nucleus of an atom, which is the central core. Electrons are located outside the nucleus in orbitals. Quarks are even smaller subatomic particles that make up protons and neutrons.
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