Which of the following does not match the characteristics of an Isotope?

Which of the following does not match the characteristics of an Isotope?

Q. Which of the following does not match the characteristics of an Isotope?

A.            Isotopes of some elements are radioactive

B.            Isotopes are the atoms of different elements

C.            Isotopes differ in number of neutrons

D.            Isotopes have similar chemical properties

Answer: Isotopes are the atoms of different elements

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