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musabnw080
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
TheAnimeGirl

Hey!!

I want to give u a easy definition of isotope.

Isotope of chemical element is an atom that has different number of neutrons than the standard for that element.

Hope this will help u.

If my ans was helpful u can follow me on brainly.

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