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Neutron
NEUTRON: Neutrally charged particles in the nucleus of an atom
Location Charge Mass
Nucleus Neutral (zero) 1 AMU (Atomic Mass Unit)
• Atoms of the same element can have different numbers of neutrons.
Element X can have either 24 neutrons or 25 neutrons.
• ISOTOPE: Different form of the same element. We will learn more about this soon.
Neutron—neutral. Neutrons stay neutral. They aren’t
positive or
negative.
Neutron
32 © UNIT 2: ATOMIC STRUCTURE
