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10 September, 15:40

How does the release of an alpha particle affect a mass number? Atomic number?

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  1. 10 September, 16:11
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    When an alpha particle is emitted from a nucleus the nucleus loses two protons and two neutrons. This means the atomic mass number decreases by 4 and the atomic number decreases by 2. A new element is formed that is two places lower in the Periodic Table than the original element.
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