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sciencemath

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Suppose a laboratory has a 31 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of polonium-210 occur in 966 days? How much polonium is in the sample 966 days later?

  • sciencemath - ,

    966/138 = 7

    7 half-lives means that 1/128 of the original 31g remains.

  • Algebra - ,

    Suppose a laboratory has a 31 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of polonium-210 occur in 966 days? How much polonium is in the sample 966 days later?

  • sciencemath - ,

    7:.24

  • sciencemath - ,

    21

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