Barium-150

Properties and data of the isotope ¹⁵⁰Ba.

Contents

General data

Name of the isotope:Barium-150; Ba-150Symbol:¹⁵⁰Ba or 15056BaMass number A:150 (= number of nucleons)Atomic number Z:56 (= number of protons)Neutrons N:94Isotopic mass:149.94643(32) u (atomic weight of Barium-150)Nuclide mass:149.9157116 u (calculated nuclear mass without electrons)Mass excess:-49.90013 MeVMass defect:1.306273896 u (per nucleus)Nuclear binding energy:1216.78629648 MeV (per nucleus)
8.11190864 MeV (average binding energy per nucleon)Half-life:259(5) msDecay constant λ:2.6762439403859 s^-1Specific activity α:1.08165892513 × 10⁺²² Bq g^-1
292340250037.3 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1994

Radioactive Decay

Half-life T_½ = 259(5) ms respectively 2.59 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁵⁰La	< 100 %	6.23(53) MeV
β^-, n	¹⁴⁹La	rare	2.25(36) MeV

Parent Nuclides

Direct parent isotope is: ¹⁵⁰Cs.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 94) and isobaric (same nucleon number A = 150) with Barium-150. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 94	Isobar A = 150
54	¹⁴⁸Xe
55	¹⁴⁹Cs	¹⁵⁰Cs
56	¹⁵⁰Ba	¹⁵⁰Ba
57	¹⁵¹La	¹⁵⁰La
58	¹⁵²Ce	¹⁵⁰Ce
59	¹⁵³Pr	¹⁵⁰Pr
60	¹⁵⁴Nd	¹⁵⁰Nd
61	¹⁵⁵Pm	¹⁵⁰Pm
62	¹⁵⁶Sm	¹⁵⁰Sm
63	¹⁵⁷Eu	¹⁵⁰Eu
64	¹⁵⁸Gd	¹⁵⁰Gd
65	¹⁵⁹Tb	¹⁵⁰Tb
66	¹⁶⁰Dy	¹⁵⁰Dy
67	¹⁶¹Ho	¹⁵⁰Ho
68	¹⁶²Er	¹⁵⁰Er
69	¹⁶³Tm	¹⁵⁰Tm
70	¹⁶⁴Yb	¹⁵⁰Yb
71	¹⁶⁵Lu	¹⁵⁰Lu
72	¹⁶⁶Hf
73	¹⁶⁷Ta
74	¹⁶⁸W
75	¹⁶⁹Re
76	¹⁷⁰Os
77	¹⁷¹Ir
78	¹⁷²Pt
79	¹⁷³Au
80	¹⁷⁴Hg