Which pair of atoms are isotopes of each other?

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Question

Which pair of atoms are isotopes of each other?

Accepted Answer

One with 6 protons and 6 neutrons, and one with 6 protons and 8 neutrons — Award 1 mark. Isotopes must share the proton number and differ only in neutrons. Each rejected pair has matching mass numbers but different proton numbers, so those are different elements.

Answer

One with 6 protons and 6 neutrons, and one with 7 protons and 7 neutrons

Answer

One with 6 protons and 6 neutrons, and one with 6 protons and 8 neutrons

Answer

One with 12 protons and 12 neutrons, and one with 11 protons and 13 neutrons

Answer

One with 8 protons and 8 neutrons, and one with 7 protons and 9 neutrons

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