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How do I determine if a certain nuclear decay is allowed?
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[QUOTE="Calleguld, post: 5471558, member: 593795"] Hi, I am struggling with a question where they want me to determine whether or not three different decay are allowed. From what I have understood all decays must follow a set of conservation law. These laws are: 1 Conservation of Baryon number 2 Conservation of Lepton number 3 Conservation of electric charge This is very straight forward when you have simple decays like the decay of a neutron. Where you have: n -> p+e+anti v[SUB]e[/SUB] But how does it work for nucleons? For example: Thorium-222 -> Oxygen-16 + Lead-206 This decay is not allowed as thorium-222 only decays with alpha-decay. But as far as I can see the laws are still followed. 1: 222 -> 16 + 206 = 222 2: 90 -> 8 + 82 = 90 3: 90-90 -> 8-8 + 82-82 = 0 What am I missing? please help! [/QUOTE]
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How do I determine if a certain nuclear decay is allowed?
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