Isotones

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Isotones

 

atoms of different chemical elements with the same number of neutrons in their nuclei. The following are examples of isotones: the atoms Isotones and img0280, whose nuclei contain three neutrons each. Among these isotones, 5He decays almost instantaneously, 6Li is stable, and 7Be and 8B are radioactive—they have half-lives of 43 days and 0.8 sec, respectively.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The existence of identical bands in the isotones [sup.192]Hg(SD1) and [sup.194]Pb(SD1) are investigated.
The N = 90 isotones [sup.154]Gd [15,16] and [sup.156]Dy [17,18] were seen to provide good example to transition from spherical to axially deformed.
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:
Nucleus Yrast band [sup.150.sub.64]Gd [pi](3)[bar.0][[(4).sup.10][(5).sup.12]] [([i.sub.13/2]).sup.2] [sup.150.sub.65]Tb [pi](3)[bar.0][[(4).sup.10][(5).sup.12]] [([i.sub.13/2]).sup.3] [sup.152.sub.66]Dy [pi](3)[bar.0][[(4).sup.10][(5).sup.12]] [([i.sub.13/2]).sup.4] Nucleus Excited band [sup.150.sub.64]Gd [pi](3)[bar.1][[(4).sup.10][(5).sup.12]] [([i.sub.13/2]).sup.3] [sup.150.sub.65]Tb [pi](3)[bar.1][[(4).sup.10][(5).sup.12]] [([i.sub.13/2]).sup.4] [sup.152.sub.66]Dy [pi](3)[bar.1][[(4).sup.10][(5).sup.12]] [([i.sub.13/2]).sup.5] 6 Identical bands in the isotones nuclei N=86
The difference in [gamma]-ray energies [DELTA][E.sub.[gamma]] between transition in the two pairs of N=86 isotones (excited 151Tb (SD-2), yrast [sup.152]Dy (SD-1)) and (excited [sup.150]Gd (SD-2), yrast [sup.151]Tb (SD-1)) were calculated.