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Atom stackk.

Neutron. A subtomic particle that has no charge and that is located in the nucleus of the atom.
Proton. A subtomic particle taht has a particle charge and that is located in the nucleus of an atom; the number of protons in the nucleus is the atomic number, which determines the identity of an element.
Electron. A subtomic particle that has a negative charge.
Atomic Mass. The mass of an atom expressed in an atomic mass units.
Nucleus. The middle part of an atom containing protons & neutrons.
Created by: lorraine321