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Home  FAQ Atoms, elements, and ions | Print | Comment |
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What are alpha particles?
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- 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.
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General Chemistry Online! What are alpha particles?
Copyright © 1997-2005 by Fred Senese
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Last Revised 07/31/07.URL: http://antoine.frostburg.edu/chem/senese/101/atoms/faq/alpha-particles.shtml