Question

In which of the following, no change in mass number of the daughter nuclei takes place _____. 

(i) α decay 

(ii) β decay 

(iii) γ decay 

(iv) neutron decay

(a) (i) is correct 

(b) (ii) and (iii) are correct 

(c) (i) & (iv) are correct 

(d) (ii) & (iv) are correct.

Answer 1

(b) (ii) and (iii) are correct