Understanding Isotopes

Easy Physics Atomic And Nuclear Physics

In atomic physics, isotopes of an element differ in the number of neutrons they contain. This variation impacts the stability of the isotopes and their likelihood to undergo radioactive decay. Which of the following statements accurately describes isotopes?

Isotopes of an element have the same number of protons but different numbers of electrons.

Isotopes of an element have the same mass number.

Isotopes of an element have the same number of neutrons but different numbers of protons.

Isotopes of an element have the same number of protons but different numbers of neutrons.

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