Dating radioactive elements


05-Jun-2019 23:15

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Although the radioactive decay of a nucleus is too small to see with the naked eye, we can indirectly view radioactive decay in an environment called a cloud chamber.Click here to learn about cloud chambers and to view an interesting Cloud Chamber Demonstration from the Jefferson Lab.Electron capture occurs when one of the inner electrons in an atom is captured by the atom’s nucleus.For example, potassium-40 undergoes electron capture: Electron capture occurs when an inner shell electron combines with a proton and is converted into a neutron.Following the somewhat serendipitous discovery of radioactivity by Becquerel, many prominent scientists began to investigate this new, intriguing phenomenon.

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Beta particles, which are attracted to the positive plate and deflected a relatively large amount, must be negatively charged and relatively light.Whether electron capture or positron emission occurs is difficult to predict.



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