Alpha Particle Sign Video
Upload On Thu Jun 23 2011 by ASL STEM
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Definition
Particles emitted from the nucleus of a radioactive element during the process of alpha decay. They are helium nuclei (2 protons, 2 neutrons), with a +2 change.
Source: Kelter P, Mosher M, and Scott A (2008). Chemistry: the Practical Science. New York: Houghton Mifflin Company.
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