Isotopes of the same element ONLY differ in mass.
The isotopes have different masses.
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In that case, you would say that the atom has different isotopes.The difference in mass is due to a difference in the amount of neutrons.
Yes, that is correct. Isotopes are atoms of the same element with the same number of protons (atomic number) but different numbers of neutrons (atomic mass). This difference in neutrons results in isotopes having different atomic masses.
Because of the difference in mass number. Isotopes must have different numbers of neutrons.
Isotopes of the same element have different numbers of neutrons.
Different numbers of neutrons, e.g. deuterium and tritium are isotopes of hydrogen.
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The isotopes of hydrogen have a greater ratio of mass difference because hydrogen has the smallest atomic mass compared to other elements. Since the mass of hydrogen isotopes differs significantly (H-1, H-2, and H-3), the ratio of their mass difference is also relatively larger. This makes the difference in mass between hydrogen isotopes more pronounced compared to isotopes of other elements, which have higher atomic masses.
The same numbers of protons and of electrons; the difference between isotopes is in the number of neutrons.
Number of neutrons in the nucleus.