13.2.3 - Describe one piece of evidence for the existence of nuclear energy levels.
The energy of alpha particles has discrete values
Because these alpha particles have discrete energies and are released from the nucleus, therefore proves the existence of discrete nuclear energy levels.
13.2.4 - Describe β+ decay, including the existence of the neutrino
This continuous spectrum is formed due to neutrons and anti-neutrons, when Beta emissions were calculated, the beta particles which were emitted had less kinetic energy than expected which opposed the law of conservation of energy. The particle Neutrino has no charge, extremely small mass and travels close to the speed of light and is the small particle responsible for the loss in kinetic energy and momentum.
No comments:
Post a Comment