Isotopes are atoms of the same element with different numbers of neutrons, as seen in the case of Hydrogen isotopes Protium, Deuterium, and Tritium.
Isotopes are atoms of the same element that have the same number of protons but a different number of neutrons. For example, Hydrogen has three isotopes: Protium, Deuterium, and Tritium, with each isotope having a different number of neutrons.
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