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PIT_PIT [208]
2 years ago
8

A gamma ray primarily consists of pure energy and no mass. True False

Chemistry
1 answer:
notka56 [123]2 years ago
3 0
This is true otherwise cancer patients would have a hole in them and so would the hulk ;)
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The half-life of a radioactive isotope is the amount of time it takes for a quantity of that isotope to decay to one half of its
Sedaia [141]

Radio active decay reactions follow first order rate kinetics.

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t_{\frac{1}{2}} = \frac{0.693}{k}

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c) Finding the age of the sample :

35 % of the radiocarbon is present currently.

The first order rate equation is,

[A] = [A_{0}]e^{-kt}

\frac{[A]}{[A_{0}]} = e^{-kt}

\frac{35}{100} = e^{-(1.325 *10^{-4})t}

ln(0.35) = -(1.325 *10^{-4})(t)

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