Isotopes of an element have

(a) the same physical properties

(b) different chemical properties

(c) different number of neutrons

(d) different atomic numbers.

 

Answer

 

(c) different number of neutrons

 

Explanation -

 

  • Isotopes are elements having the same atomic numbers but different mass numbers.
  • This means that they have the same number of protons/electrons but different numbers of neutrons.
  1. Class 9
  2. Chapter 4 Class 9 - Structure of Atom (Term 2)

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CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo