neutron excess

neutron excess

[′nü‚trän ′ek‚ses]
(nuclear physics)
The number of neutrons in a nucleus in excess of the number of protons. Also known as difference number; isotopic number.
References in periodicals archive ?
After the magnets for CERN and those being built for the ITER project the company owned by the Malacalza family will build 33 superconducting multiplets, worth EUR 50 million, for the Super Fragment Separator experiment, which forms part of the FAIR project to study fundamental research questions like the structure and properties of atomic nuclei with extreme neutron excess or deficiency.
To the left of the stable nuclei are proton excess nuclei, and on the right neutron excess nuclei.