What are alpha particles?

Alpha particles are helium nuclei; they contain two protons and two neutrons. The fact that alpha particles passing through a thin metal film ricocheted was the first experimental evidence of the atomic nucleus.

Author: Fred Senese senese@antoine.frostburg.edu

General Chemistry Online! What are alpha particles?

Copyright © 1997-2010 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 08/17/15.URL: http://antoine.frostburg.edu/chem/senese/101/atoms/faq/print-alpha-particles.shtml