Isotones

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.

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.