A subatomic particle that has a positive charge and that is located in the nucleus of an atom.

A subatomic particle that has no charge and that is located in the nucleus of an atom

Subatomic particle that has a negative charge and moves around the outside of the nucleus

The number of protons in the nucleus of an atom.

The sum of the numbers of protons and neutrons in the nucleus of an atom

An atom that has the same number of protons as other atoms of the same element do but that has a different number of neutrons

Is equal to one-twelfth of the mass of a carbon-12 atom

The SI base unit used to measure the amount of a sbustance whose number of particles is the same as the number of atoms of carbon in exactly 12 g of carbon-12

An atom's central region, which made up of protons and neutrons

Unable to be cut or divided

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