Argon nuclear properties

The section on Spectroscopy has been retained but with some revisions and expansion. The section includes ultraviolet-visible spectroscopy, fluorescence, infrared and Raman spectroscopy, and X-ray spectrometry. Detection limits are listed for the elements when using flame emission, flame atomic absorption, electrothermal atomic absorption, argon induction coupled plasma, and flame atomic fluorescence. Nuclear magnetic resonance embraces tables for the nuclear properties of the elements, proton chemical shifts and coupling constants, and similar material for carbon-13, boron-11, nitrogen-15, fluorine-19, silicon-19, and phosphoms-31. 

Other applications of these elements take advantage of their nuclear properties. For example, one prevalent method of establishing the age of early humanoids is the potassium-argon dating procedure developed in the 1950s. Potassium-40 has a half-life of 1.3 billion years and decays by either beta-minus or beta-plus emission, as shown in Equations (12.22) and (12.23) ... 

The only elements that have no stable isotope with a nuclear spin are cerium and argon, but there are others for which no spectra have been reported, including gold, which is 100% Au, with 7=3/2. There is a full discussion of the applications of NMR to all the less commonly observed elements in [1]. Although it was published as long ago as 1978, this is still an essential reference book for those interested in applying NMR widely in inorganic chemistry. Properties of some isotopes with /> 1/2 are included in Table 4.1. 

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