About   |   More   |   Search
ChemLin Logo

Dysprosium-156

Properties and data of the isotope 156Dy.


Content

See also: list of Dysprosium isotopes.

 

General data

Name of the isotope:Dysprosium-156; Dy-156Symbol:156Dy or 15666DyMass number A:156 (= number of nucleons)Atomic number Z:66 (= number of protons)Neutrons N:90Isotopic mass:155.92428(2) u (atomic weight of Dysprosium-156)Nuclide mass:155.8880768 u (calculated nuclear mass without electrons)Mass excess:-70.53273 MeVMass defect:1.372014552 u (per nucleus)Nuclear binding energy:1278.0233231 MeV (per nucleus)
8.1924572 MeV (average binding energy per nucleon)
Separation energy:SN = 9.445(10) MeV (first neutron)
SP = 6.568(10) MeV (first proton)
Half-life:stableSpin and parity:
(nuclear angular momentum)
0+Charge radius:5.1622(2869) femtometer fmYear of discovery:1948

 

Parent Nuclides

Direct parent isotope is: 156Ho.

 

Occurrence

Comparison of the natural Dysprosium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

 

Atomic Mass maQuantityHalf-lifeSpin
Dysprosium
Isotopic mixture
162.500 u100 %
Isotope 156Dy155.92428(2) u0.056(3) %stable0+
Isotope 158Dy157.92442(2) u0.095(3) %stable0+
Isotope 160Dy159.92520(2) u2.329(18) %stable0+
Isotope 161Dy160.92694(2) u18.889(42) %stable5/2+
Isotope 162Dy161.92681(2) u25.475(36) %stable0+
Isotope 163Dy162.92874(2) u24.896(42) %stable5/2-
Isotope 164Dy163.92918(2) u28.260(54) %stable0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 90) and isobaric (same nucleon number A = 156) with Dysprosium-156. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 90Isobar A = 156
51141Sb
52142Te
53143I
54144Xe
55145Cs
56146Ba
57147La156La
58148Ce156Ce
59149Pr156Pr
60150Nd156Nd
61151Pm156Pm
62152Sm156Sm
63153Eu156Eu
64154Gd156Gd
65155Tb156Tb
66156Dy156Dy
67157Ho156Ho
68158Er156Er
69159Tm156Tm
70160Yb156Yb
71161Lu156Lu
72162Hf156Hf
73163Ta156Ta
74164W
75165Re
76166Os
77167Ir
78168Pt

 

External data and identifiers

Adopted Levels, Gammas:NuDat 156Dy

 


More Chemistry

isotopes

 

 

 

 

Social Media

Facebook

LinkedIn

Twitter

 

 


Last update: 2020-10-08


© 1996 - 2024 ChemLin