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nataly862011 [7]
3 years ago
5

The half life of iodine-125 is 60 days. What fraction of iodine-125 nuclides would be left after 360 days?

Chemistry
1 answer:
slega [8]3 years ago
7 0

Explanation:

The half-life is the time taken for a radioactive substance to decay to half of its original composition.

    Let us assume that the original amount is x atoms;

                     Half - life   = 60days

Days                          Composition           Half-life number

0                                         x                                   0

60                                   x/2                                    1

120                                  x/4                                    2

180                                   x/8                                   3

240                                  x/16                                   4

300                                  x/32                                  5

360                                   x/64                                6

The fraction that would be left after 360 days will be \frac{1}{64}

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