A RADIOACTIVE NUCLEUS HAS A HALF-LIFE OF 20 YEARS, STARTING WITH 100,000 PARTICLES, HOW MANY PARTICLES WILL BE LEFT EXACTLY AT THE END OF 40 YEARS
A. 75,000 particles B. 35,000 particles C. 25,000 particles ✓ D. 50,000 particles The answer to the question is: C. 25,000 particles The decay of a radioactive nucleus can be described by its half-life, which is the time it takes for half…
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