For a Selected Atom in a Sample of a Radioactively

question 46

Multiple Choice

For a selected atom in a sample of a radioactively decaying isotope,the probability that it will decay during a time interval of a specified length is

• A) dependent on how long ago t = 0 was set.
• B) independent of when the time interval starts relative to the current time.
• C) dependent upon how old the atom is.
• D) fundamentally unpredictable.

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