Anonymous From: - Posts: - Votes: - |
Find the half-life of the radioactive element radium, assuming thatits decay constant is k = 4.332 * 10-4, with the timemeasured in years. Note: We are in a chapter of intregals. The answer the teacher gaveus was 1600 years. |

Anonymous From: - Posts: - Votes: - |
I figured itout myself. Starting with the formula for exponential decay: N =N0e-kt which becomes N0/2 =Noe-kT. Wesolve for T and get (ln2)/k. Solving for T we have roughly1600 years. |

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