The correct option is:
Beta decay releases a particle, while gamma decay only reduces the energy level. Neither beta decay nor gamma decay is a form of nuclear fission.
Explanation:
-
Beta Decay: In beta decay, a neutron in the nucleus is transformed into a proton, which results in the emission of a beta particle (electron or positron). This process changes the atomic number of the element, transforming it into a different element.
-
Gamma Decay: Gamma decay involves the emission of gamma radiation (high-energy photons) from an excited nucleus. It does not change the number of protons or neutrons in the nucleus but rather helps the nucleus to reach a lower energy state.
-
Nuclear Fission: Neither beta decay nor gamma decay is a form of nuclear fission. Nuclear fission involves the splitting of a heavy nucleus into lighter nuclei, usually accompanied by the release of a significant amount of energy.