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Chem Stuff

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A	B
Alpha Particle	Helium Nucleus +2 Charge; 4 AMU
Beta Particle	electron or proton -1 charge; little AMU
Gamma Rays	most harmful rays
proton	positive particle in nucleus, 1 AMU
neutron	particle in nucleus, no charge 1 AMU
electron	outside in cloud; neg.; little mass

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