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22-12-2022
Chemistry

Answered

30. Which is true of atoms X and Y if they are isotopes of the same element?
A. X and Y have the same atomic number and mass number.
B. X and Y have the same number of protons but different number of neutrons
C. X and Y have the same mass number but different atomic number.
D. X and Y have the same number of neutrons but different number of protons

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