Chemistry

Immanuel Stephens

8 November, 21:04

The nucleus of some isotopes will spontaneously undergo nuclear decay. These isotopes are said to be radioactive. What causes the nucleus of an isotope to be radioactive?

a. too many electrons in its orbitals

b. exposure to toxic chemicals

c. the net charge of the atom

d. the attraction of protons to electrons

e. an unstable ratio of protons and neutrons