The isotopes of an element differ in
The isotopes of an element differ in
(A) the number of neutrons in the nucleus
(B) the charge on the nucleus
(C) the number of extra-nuclear electrons
(D) both the nuclear charge and the number of extra-nuclear electrons
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Correct Option is : (A) the number of neutrons in the nucleus
Isotopes elements have same number of protons but differ in number of neutrons.
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