Gadolinium-150

Properties and data of the isotope ¹⁵⁰Gd.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

See also: List of individual Gadolinium isotopes (and general data sources).

General data

Name of the isotope:Gadolinium-150; Gd-150Symbol:¹⁵⁰Gd or 15064GdMass number A:150 (= number of nucleons)Atomic number Z:64 (= number of protons)Neutrons N:86Isotopic mass:149.918664(7) u (atomic weight of Gadolinium-150)Nuclide mass:149.8835577 u (calculated nuclear mass without electrons)Mass excess:-75.764 MeVMass defect:1.327320824 u (per nucleus)Nuclear binding energy:1236.39138363 MeV (per nucleus)
8.24260922 MeV (average binding energy per nucleon)Separation energy:S_N = 8.708(7) MeV (first neutron)
S_P = 6.612(7) MeV (first proton)Half-life:1.79(8) × 10⁶ aDecay constant λ:1.227907983781 × 10^-14 s^-1Specific activity α:49628421.754182 Bq g^-1
0.001341308696059 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Charge radius:5.0342(159) femtometer fmYear of discovery:1953

Radioactive Decay

Half-life T_½ = 1.79(8) × 10⁶ a respectively 5.644944 × 10¹³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	¹⁴⁶Sm	100 %	2.807(6) MeV

Parent Nuclides

Direct parent isotopes are: ¹⁵⁰Tb, ¹⁵⁴Dy, ¹⁵⁰Eu.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 86) and isobaric (same nucleon number A = 150) with Gadolinium-150. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 86	Isobar A = 150
48	¹³⁴Cd
49	¹³⁵In
50	¹³⁶Sn
51	¹³⁷Sb
52	¹³⁸Te
53	¹³⁹I
54	¹⁴⁰Xe
55	¹⁴¹Cs	¹⁵⁰Cs
56	¹⁴²Ba	¹⁵⁰Ba
57	¹⁴³La	¹⁵⁰La
58	¹⁴⁴Ce	¹⁵⁰Ce
59	¹⁴⁵Pr	¹⁵⁰Pr
60	¹⁴⁶Nd	¹⁵⁰Nd
61	¹⁴⁷Pm	¹⁵⁰Pm
62	¹⁴⁸Sm	¹⁵⁰Sm
63	¹⁴⁹Eu	¹⁵⁰Eu
64	¹⁵⁰Gd	¹⁵⁰Gd
65	¹⁵¹Tb	¹⁵⁰Tb
66	¹⁵²Dy	¹⁵⁰Dy
67	¹⁵³Ho	¹⁵⁰Ho
68	¹⁵⁴Er	¹⁵⁰Er
69	¹⁵⁵Tm	¹⁵⁰Tm
70	¹⁵⁶Yb	¹⁵⁰Yb
71	¹⁵⁷Lu	¹⁵⁰Lu
72	¹⁵⁸Hf
73	¹⁵⁹Ta
74	¹⁶⁰W
75	¹⁶¹Re
76	¹⁶²Os