Question

What type of isotope undergoes radioactive decay? one that has a nucleus with the same number of protons and neutrons one that has an unstable nucleus one that has the same number of protons and electrons one that has a stable nucleus

Answer 1

B

Explanation:

Edge 2020

Answer 2

B. one that has an unstable nucleus

Explanation:

In radioactive decay, an atom nuclei breakdown generating new nucleus with lower atomic mass, and releasing energy. This happens to those atoms with a high number of protons (and the same number of electrons) and an even higher number of neutrons which cannot hold the nucleus together. The process finishes when stable nucleus are reached.