Which of the following pairs must represent the same element?

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Chemistry · Isotopes and Atomic Structure

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Same atomic number, different mass numbers

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Answer 1

Same number of neutrons, different atomic numbers

Answer 2

Same mass number, different atomic numbers

Answer 3

Same atomic number, different mass numbers

Answer 4

Different number of protons, same number of neutrons

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