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Radium-226 Is Subject to Radioactive Decay, and Each Year the Amount

Question 13

Multiple Choice

Radium-226 is subject to radioactive decay, and each year the amount present is reduced by 4.2%. The amount of radium-226 is an exponential function of time in years. What is the base of this exponential function?


A) 0.042
B) 0.238
C) 0.958
D) 4.2

Correct Answer:

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