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Radioactive dating equations

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The third of three pages designed to give the reader a background in the concepts of Radiometric Dating Techniques. If you are having problems understanding concepts such as Average Nuclear binding Energy and nuclide stability; What is it that drives fission; fusion; and other nuclear reactions; Types of radioactive decay, alpha, beta, gamma, positron, and a summary of characteristics; Nuclear reactions; Nuclear equations; The use of nuclide charts to visually chart out nuclear reactions; The U decay series shown on a nuclide chart. See the Nuclear Reactions Page. Since Radiometric Dating Techniques are based on the half-life phenomena of radioactive nuclides, lets explore it a little. Radioactive atoms are unstable so they decay into a something else. The rate that atoms decay or break down is not constant.
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Radioactive Half-Life

The earth's atmosphere is made up of nitrogen 78 percent , oxygen 21 percent , argon 0. Like pi , e cannot be written exactly in decimal form. The value of e is approximately 2. Like pi , it is one of those numbers that pops up all by itself in nature. By that we mean that whenever you have an equation that has to do with circles or spheres circumference, area, or volume the value pi is bound to figure into the equation somehow.
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Radioactive Dating Explained

Because the radioactive half-life of a given radioisotope is not affected by temperature, physical or chemical state, or any other influence of the environment outside the nucleus save direct particle interactions with the nucleus, then radioactive samples continue to decay at a predictable rate and can be used as a clock. This makes several types of radioactive dating feasible. For geologic dating, where the time span is on the order of the age of the earth and the methods use the clocks in the rocks , there are two main uncertainties in the dating process:.
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Radioactive decay. To calculate the half-life of the radioactive isotope. The half-life of the isotope used should be short tenths seconds. The intensity of the radioactive radiation increases during about one minute after shaking.

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