The International Gold Number of Neutrons
The international gold number of neutrons (IGNN) is a measure of the neutron richness of a given nucleus. It is defined as the ratio of the number of neutrons in the nucleus to the number of protons. The IGNN is useful for comparing the neutron richness of different nuclei, and for understanding the stability and properties of atomic nuclei.
The IGNN is typically expressed as a decimal number between 0 and 1. A nucleus with an IGNN of 0 has no neutrons, while a nucleus with an IGNN of 1 has an equal number of neutrons and protons. Most stable nuclei have an IGNN between 0.5 and 0.6.
The IGNN can be used to predict the stability of a nucleus. Nuclei with an IGNN that is too low or too high are typically unstable and will decay into more stable nuclei. The IGNN can also be used to understand the properties of atomic nuclei. For example, nuclei with a high IGNN are typically more neutron-rich and have a larger radius than nuclei with a low IGNN.
The IGNN is a useful tool for nuclear physicists. It can be used to compare the neutron richness of different nuclei, to understand the stability and properties of atomic nuclei, and to predict the decay modes of unstable nuclei.
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