NCERT Question 16 - Chapter 4 Class 9 - Structure of Atom

Last updated at Dec. 16, 2024 by

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.
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