Which of these statements best compares a parent radioactive isotope with the daughter isotope?
daughter isotope has more stable nucleus than parent isotope.
daughter isotope has less stable nucleus than parent isotope.
daughter isotope has more stable electrons than parent isotope.
daughter isotope has less stable electrons than parent isotope.

Daughter isotope has more stable nucleus than parent isotope. ( first choice)

Option (1)

Explanation:

The parent radioactive isotopes are those that are comprised of a unstable nucleus, which continuous decay and emits harmful radiations and after consecutive half lives, their original composition reduces to half and so on. It slowly converts into a more stable one, where the nucleus is more stable and emits lesser amount of radiations. These are known as the daughter isotope..

Thus, the daughter isotopes are comprised of more stable nucleus in comparison to the parent isotopes.

Hence, the correct answer is option (1).