Question

is atomic number of isotopes are different or same?​

Answer 1

Answer:

Different isotopes of the same element have the same atomic number. They have the same number of protons. The atomic number is decided by the number of protons. Isotopes have different mass numbers, though, because they have different numbers of neutrons.

Explanation:

Answer 2

Answer:

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Explanation:

Isotopes of the same element will have the same atomic number but different mass numbers.