MR. D. L. CHAPMAN'S argument appears essentially to be similar to that already developed from a quite different point of view by Lindemann (Phil. Mag., 1919, vol ...

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

Researchers have discovered eight new rare isotopes of the elements phosphorus, sulfur, chlorine, argon, potassium, scandium and, most importantly, calcium. These are the heaviest isotopes of these ...

Analysis of Apollo-return samples revealed that the chlorine content and isotope compositions of lunar samples are unique compared with Earthly and other materials, such as meteorites, suggesting that ...

Sulfur and chlorine isotopes in the atmosphere of Jupiter’s moon Io indicate that it has been volcanically active for the entire 4.57 billion-year history of the Solar System, according to a new study ...

ON certain plausible assumptions concerning the nature of chemical equilibria and the properties of isotopes, it should be possible to separate the isotopic varieties of an element like chlorine by ...