What is alpha decay and beta decay, Physics

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The graph below shows a sequence of alpha and beta decays, labeled 1, 2, 3, and 4.

Consult Table 30-1 as required.

155_atomic number.png

 

a) Which shows alpha decays, and which represent beta decays?

b) What is the overall alter in mass in the sequence? In the number of neutrons?

 

 


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