Properties of the Nuclides

G. W. C. Kaye and T. H. Laby, Tables of Physical and Chemical Constants, Longman 1995, gives a table of properties of the nuclides including isotopic abundance or half-life, decay modes, mass excess, neutron capture cross-section and ground-state spin and parity. This publication, with a prospect of regular updates, is available on the website http //www.kayelaby.npl.co.uk/. 

It might be convenient for the reader to briefly premise the advantages and drawbacks of O NMR spectroscopy, as its utilization is still not widespread among organic chemists. The main NMR spectroscopic properties of the nuclide are gathered in Table 1. 

Radioactivity that enters the biosphere is subject to transport by a variety of pathways and mechanisms that need to be reflected in migration models for this regime. Factors to consider in biosphere transport models are similar in type to those considered for geosphere transport, but details will differ substantially. Pathways are more numerous in the biosphere, and phenomena such as weathering may change the physical and chemical properties of the nuclides. Such changes may alter the environmental behavior and biological consequences of the radioactivity. 

The biologic effects of radiation depend on the energy, the penetrating ability, the ionizing ability of the radiation, and the chemical properties of the nuclide producing the radiation... 

If a moderator is composed of different nuclides/elements, then the properties of the nuclides must be averaged. The properties of some compounds used as moderators are given... 

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