isotone


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Isotone

One of two or more atoms which display a constant difference A - Z between their mass number A and their atomic number Z. Thus, despite differences in the total number of nuclear constituents, the numbers of neutrons in the nuclei of isotones are the same. The numbers of naturally occurring isotones provide useful evidence concerning the stability of particular neutron configurations. For example, the relatively large number (six and seven, respectively) of naturally occurring 50- and 82-neutron isotones suggests that these nuclear configurations are especially stable. On the other hand, from the fact that most atoms with odd numbers of neutrons are anisotonic, one may conclude that odd-neutron configurations are relatively unstable. See Nuclear structure

isotone

[′ī·sə‚tōn]
(nuclear physics)
One of several nuclides having the same number of neutrons in their nuclei but differing in the number of protons.
References in periodicals archive ?
Remo Gugolz of WinForce said: "We needed a convenient and practical solution to our dispensing requirements for Isotone and the wide choice of dispensers offered by Rieke meant the company could tailor a solution to our two different packs.
The existence of identical bands in the isotones [sup.
Nuclei located at or very close to the first order transition were the N=90 isotones 150Nd, 152Nd, 154Nd and 156Nd.
It is concluded that the N=86 isotones SD nuclei have identical supershell structures:
gamma]] between transition in the two pairs of N=86 isotones (excited 151Tb (SD-2), yrast [sup.