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Neutrons
Subatomic particles found in the nucleus of an atom, carrying no electric charge and having a mass slightly larger than that of a proton.
Allotropes
Different forms of the same element in the same physical state with different structures and properties.
Atomic Mass Number
The total number of protons and neutrons in the nucleus of an atom, determining its mass.
Atomic
Relating to atoms, the smallest constituent unit of ordinary matter that constitutes a chemical element.
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