Pauli exclusion principle

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Atom - Isotopes, Atomic Mass, Pauli Exclusion Principle | Britannica Pauli Exclusion Principle, Atomic Mass Unit, Enrico Fermi, Mass Number, Chemical Elements, Electric Charge, Quantum Mechanics, Magnetic Field, He Is Able

The number of neutrons in a nucleus affects the mass of the atom but not its chemical properties. Thus, a nucleus with six protons and six neutrons will have the same chemical properties as a nucleus with six protons and eight neutrons, although the two masses will be different. Nuclei with the same number of protons but different numbers of neutrons are said to be isotopes of each other. All chemical elements have many isotopes. It is usual to characterize different isotopes by giving the…

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