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, N_A, as a function of time t?

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

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