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 ?
P x P [right arrow] P is isotone on first variable and antitone on second variable.
In this section, we prove common fixed point theorems for a pair of weakly isotone increasing multivalued mappings under general weak contractive condition.
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," said Remo Gugolz of WinForce.
The mass of about 200 [micro]g of the resulting suspension was placed into a container with a mass of Isotone equivalent to about 100 ml of Isotone.
Fujimoto: An extension of Tarski's fixed point theorem and its application to isotone complementarity problems, Math.
The accurate dosing of two dispensers from Rieke Packaging Systems Englass were key to its selection by leading Swiss sports nutrition manufacturer WinForce for the dispensing of its 'all natural' isotonic drink Isotone.
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.