Radiometric dating wikianswers


21-Mar-2018 17:01

In electron absorption, a proton absorbs an electron to become a neutron.

In other words, electron absorption is the exact reverse of beta decay.

The mass number doesnt change, while the atomic number goes down by 1.

So an atom of potassium-40 (K40), atomic number 19 can absorb an electron to become an atom of argon-40 (Ar40), atomic number 18.

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A mathematical formula can be used to calculate the half-life from the number of breakdowns per second in a sample of the nuclide.The decay rate and therefore the half-life are fixed characteristics of a nuclide. Thats the first axiom of radiometric dating techniques: the half-life of a given nuclide is a constant.



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