General Science Chemistry MCQs

Q.  What is the difference between the mass number of Parent nucleus and Daughter nucleus in an alpha-decay process?

a. 2
b. 4
c. 6
d. 8


ANSWER: See Answer
 
In α-decay, the mass number of the product nucleus (daughter nucleus) is four less than that of the decaying nucleus (parent nucleus), while the atomic number decreases by two.
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