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Lesson 2 of 7
Established science
Neutrons
No charge, also in the nucleus
A neutron also lives in the nucleus. Charge 0. Mass about the same as a proton. Add neutrons and the atom gets heavier — but it is still the same element.
- Protons
- 6
- Neutrons
- 6
- Mass no.
- 12
Neutrons on carbon
6
Six protons means this stays carbon. With 6 neutrons it is Carbon-12. Mass number A = protons + neutrons.
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