Question

Question 16
Which of the following are the characteristics of isotopes of an element?

(i) Isotopes of an element have same atomic masses
(ii) Isotopes of an element have same atomic number
(iii) Isotopes of an element show same physical properties
(iv) Isotopes of an element show same chemical properties

(a) (i), (iii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)

Answer 1

Option (d) is correct
Isotopes are atoms of the same element that have the same number of protons, i.e., same atomic number but different numbers of neutrons, hence different atomic mass. They also exhibit similar chemical properties.