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Also question is, do isotopes have same physical properties?

All atoms of the same element have the same number of protons, but some may have different numbers of neutrons. Different isotopes of an element generally have the same physical and chemical properties. That's because they have the same numbers of protons and electrons.

Furthermore, why do all isotopes have the same properties? Atoms of the same element that differ in their numbers of neutrons are called isotopes. Different isotopes of an element generally have the same physical and chemical properties because they have the same numbers of protons and electrons. Atoms need a certain ratio of neutrons to protons to have a stable nucleus.

Just so, what properties do isotopes have in common?

The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.

Do isotopes have different chemical reactions?

Chemical and Physical Properties of Isotopes The mass number has very little bearing on chemical reactions; therefore the reactivity and chemical reactions of an element's different isotopes are almost identical. The physical properties of atoms, however, do depend on mass.