Gadolinium-154
Properties and data of the isotope 154Gd.
See also: list of Gadolinium isotopes.
General data
Name of the isotope:Gadolinium-154; Gd-154Symbol:154Gd or 15464GdMass number A:154 (= number of nucleons)Atomic number Z:64 (= number of protons)Neutrons N:90Isotopic mass:153.92087(2) u (atomic weight of Gadolinium-154)Nuclide mass:153.8857637 u (calculated nuclear mass without electrons)Mass excess:-73.70912 MeVMass defect:1.359774488 u (per nucleus)Nuclear binding energy:1266.62177693 MeV (per nucleus)
8.22481673 MeV (average binding energy per nucleon)Separation energy:SN = 8.89472(17) MeV (first neutron)
SP = 7.6277(7) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)0+Charge radius:5.1223(40) femtometer fm
Parent Nuclides
Direct parent isotopes are: 154Tb, 154Eu.
Occurrence
Comparison of the natural Gadolinium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| Atomic Mass ma | Quantity | Half-life | Spin |
---|
Gadolinium Isotopic mixture | 157.25 u | 100 % | | |
Isotope 152Gd | 151.91980(2) u | 0.20(3) % | 1.08(8) × 1014 a | 0+ |
Isotope 154Gd | 153.92087(2) u | 2.18(2) % | stable | 0+ |
Isotope 155Gd | 154.92263(2) u | 14.80(9) % | stable | 3/2- |
Isotope 156Gd | 155.92213(2) u | 20.47(3) % | stable | 0+ |
Isotope 157Gd | 156.92397(2) u | 15.65(4) % | stable | 3/2- |
Isotope 158Gd | 157.92411(2) u | 24.84(8) % | stable | 0+ |
Isotope 160Gd | 159.92706(2) u | 21.86(3) % | stable | 0+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 90) and isobaric (same nucleon number A = 154) with Gadolinium-154. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 90 | Isobar A = 154 |
51 | 141Sb | |
52 | 142Te | |
53 | 143I | |
54 | 144Xe | |
55 | 145Cs | |
56 | 146Ba | |
57 | 147La | 154La |
58 | 148Ce | 154Ce |
59 | 149Pr | 154Pr |
60 | 150Nd | 154Nd |
61 | 151Pm | 154Pm |
62 | 152Sm | 154Sm |
63 | 153Eu | 154Eu |
64 | 154Gd | 154Gd |
65 | 155Tb | 154Tb |
66 | 156Dy | 154Dy |
67 | 157Ho | 154Ho |
68 | 158Er | 154Er |
69 | 159Tm | 154Tm |
70 | 160Yb | 154Yb |
71 | 161Lu | 154Lu |
72 | 162Hf | 154Hf |
73 | 163Ta | |
74 | 164W | |
75 | 165Re | |
76 | 166Os | |
77 | 167Ir | |
78 | 168Pt | |
External data and identifiers
Last update: 2020-10-20
Perma link: https://www.chemlin.org/isotope/gadolinium-154
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