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Question 11. There are two possible sequences through which the unstable radioactive nucleus lead-212 can decay into a stable nucleus. They are shown below. The daughter nuclei are labelled 1, 2, 3, and 4. heta negative decay alpha decay beta negative decay Pb 1 alplia decay 3 Match each of the boxed numbers above to the daughter nucleus that it represents, as listed below. Number: Daughter nucleus: 212 Bi 208pb 212Po 208 TI (Record all four digits of your answer in the numerical-response section on the answer sheet.) beta negative decay