Radioactive Decay: the Decay Rate of an Isotope Is Initially

question 56

Multiple Choice

Radioactive decay: The decay rate of an isotope is initially R₀, but after one half-life has gone by, the rate is R₀/2. At the end of the NEXT half-life, what will the decay rate be?

• A) 0
• B) R₀/16
• C) R₀/e
• D) R₀/4
• E) R₀/e²

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