3 years ago

Scientists can identify an element by looking at the structure of a single A.molecule. B.electron. C.neutron. D.atom.

Chemistry

1 answer:

Studentka2010 [4]3 years ago

3 0

By looking a an molecule

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[(x-37.5)/x]*100%

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Explanation:

Let's say that the original sample is x

Mass of I-125 which has decayed: x-37.5

Percentage of decayed mass: [(x-37.5)/x]*100%

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