Science Class 9 Structure of Atom

Asked by GIANSH GUPTA KHUNDKER · BIRLA BRAINIACS

Which of the following statements correctly defines a pair of isotopes?A) Atoms with the same mass number but different atomic numbers.B) Atoms with the same atomic number but different mass numbers.C) Atoms with the same number of neutrons but different protons.D) Atoms with identical physical properties but different chemical reactions.

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