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Type of Radiation
Alpha
Beta
Gamma
Symbol
Charge
+2
-1
0
Particle
He Nucleus
Electron
Radiation
Mass (amu)
4
1/1837
0
Penetration
Paper
Wood
1” lead
Isotope Dating
• There are naturally occurring elements that are radioactive
• The decompose on their own
• The rate of decomposition does not change
½ life – Time it takes for half of a substance to decay into another
Radiation of Food
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TherapeuticTreat or cure a disease with
Radiation
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Diagnostic
Used to obtain information about a patients health