question_answer 91)

    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:

                  (d) Isotopes are the atoms of the same element having same atomic number and hence, similar chemical properties but different atomic masses.