What are isotopes?
Answer and explanation
Correct answer: C. Atoms of the same element with different numbers of neutrons
- Step 1: Isotopes have the same atomic number.
- Step 2: They differ in mass number because the number of neutrons is different.
Answer
Atoms of the same element with different numbers of neutrons.
Why not the others: Atoms of different elements with the same mass number: these are not isotopes of one element. Atoms of the same element with different numbers of protons: the proton number defines the element. Ions of one element with different charges: these differ in electrons, not neutrons.
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More Chemical Changes and Structure questions
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