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Radioactive Element a Decays to the Stable Element B with a Half-Life

Question 59

Multiple Choice

Radioactive element A decays to the stable element B with a half-life T. Starting with a sample of pure A and no B, which graph below most correctly shows the number of A atoms, NA, as a function of time t? Radioactive element A decays to the stable element B with a half-life T. Starting with a sample of pure A and no B, which graph below most correctly shows the number of A atoms, N<sub>A</sub>, as a function of time t? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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