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

Question

Quizplus · Accepted Answer

The decay rate of an isotope decreases by a factor of 2 after each half-life. Therefore, after two half-lives, the decay rate would decrease by a factor of 2*2 = 4. So, the decay rate at the end of the next half-life would be R₀/4. Therefore, the correct answer is D.

The Decay Rate of an Isotope Is Initially R0, but After

The Decay Rate of an Isotope Is Initially R₀, but After