http://www.ck12.orgCHAPTER
(^22) The Nucleus
Chapter Outline
22.1 Isotopes
22.2 Radioactivity
22.3 NUCLEARREACTIONS
22.4 Quarks
22.5 NUCLEARREACTORS
22.6 REFERENCES
This photograph is of the world’s first neutrino observed in a hydrogen bubble chamber. The event was produced in
a synchronized cyclotron on November 13, 1970. The invisible neutrino follows the dashed yellow line and strikes
a proton where three particle tracks originate. The neutrino turns into a muon (the long blue line). The short track
(labeled p) is the proton. The third track is a pi-meson created by the collision.
In this unit, you will learn about the basic structure of the atomic nucleus.