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Radioactive Substance a Breaks Down to Substance B with a Half-Life

Question 6

Multiple Choice

Radioactive substance A breaks down to substance B with a half-life of 1,000 years.If we start out with four kilograms of radioactive substance A,how much of those four kilograms of substance A will remain in 3,000 years?


A) 250 grams
B) 500 grams
C) 1 kilogram
D) 2 kilograms

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