What is an isotope? Provide an example to illustrate your explanation.
ChemistryClass 9CBSEAnswered 12 May 2026
Answer
Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. This means they have the same atomic number but different mass numbers. For example, Carbon-12 (6 protons, 6 neutrons) and Carbon-14 (6 protons, 8 neutrons) are isotopes of carbon.
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