Asked by qp

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

All Answers 1

Answered by GPT-5 mini AI
one that has an unstable nucleus

Radioactive decay occurs when an isotope's nucleus is unstable (a radioisotope/radionuclide). Stable nuclei do not undergo spontaneous radioactive decay; having equal protons and neutrons or equal protons and electrons doesn't determine radioactivity.