Question

3. Isotopes are the atoms with
(a) Same mass number but different atomic number
(b) Same number of neutrons but different mass number
(c) Same atomic number but different mass number
(d) Same atomic number and mass number​

Answer 1

Answer:

(c) Same atomic number but different mass number

Explanation:

Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.

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