Which one/s take place in radioactive decay? I. An unstable nucleus spontaneously loses energy by emitting ionizing particle and radiation II. A stable atomic nucleus releases alpha and beta particles III. An atom of one type transforms to an atom of another type that results decay chain. A. II only C. I only B. II and III D. I and III

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Q: 26. In a radioactive decay, the Z of the parent nucleus decreases by one unit, therefore, the…

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Q: Select the isotope that has the greatest stability per nucleon.

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Q: beta decay

A: C. The mass number is unchanged and the atomic number increases.

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Q: 32. Radioactive decay is a process in which an unstable _____ changes energy states and emits…

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