Barium-147

Properties and data of the isotope ¹⁴⁷Ba.

Contents

General data

Name of the isotope:Barium-147; Ba-147Symbol:¹⁴⁷Ba or 14756BaMass number A:147 (= number of nucleons)Atomic number Z:56 (= number of protons)Neutrons N:91Isotopic mass:146.93495(22) u (atomic weight of Barium-147)Nuclide mass:146.9042316 u (calculated nuclear mass without electrons)Mass excess:-60.59368 MeVMass defect:1.291759148 u (per nucleus)Nuclear binding energy:1203.26589581 MeV (per nucleus)
8.18548228 MeV (average binding energy per nucleon)Separation energy:S_N = 3.388(29) MeV (first neutron)
S_P = 12.243(20) MeV (first proton)Half-life:894(10) msDecay constant λ:0.77533241673372 s^-1Specific activity α:3.198055497839 × 10⁺²¹ Bq g^-1
86433932374.041 Ci g^-1Spin and parity:
(nuclear angular momentum)(3/2-)Year of discovery:1978

Radioactive Decay

Half-life T_½ = 894(10) ms respectively 8.94 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹⁴⁷La	< 100 %	6.414(22) MeV
β^-, n	¹⁴⁶La	0.06(5) %	0.710(40) MeV

Parent Nuclides

Direct parent isotope is: ¹⁴⁷Cs.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 91) and isobaric (same nucleon number A = 147) with Barium-147. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 91	Isobar A = 147
52	¹⁴³Te
53	¹⁴⁴I
54	¹⁴⁵Xe	¹⁴⁷Xe
55	¹⁴⁶Cs	¹⁴⁷Cs
56	¹⁴⁷Ba	¹⁴⁷Ba
57	¹⁴⁸La	¹⁴⁷La
58	¹⁴⁹Ce	¹⁴⁷Ce
59	¹⁵⁰Pr	¹⁴⁷Pr
60	¹⁵¹Nd	¹⁴⁷Nd
61	¹⁵²Pm	¹⁴⁷Pm
62	¹⁵³Sm	¹⁴⁷Sm
63	¹⁵⁴Eu	¹⁴⁷Eu
64	¹⁵⁵Gd	¹⁴⁷Gd
65	¹⁵⁶Tb	¹⁴⁷Tb
66	¹⁵⁷Dy	¹⁴⁷Dy
67	¹⁵⁸Ho	¹⁴⁷Ho
68	¹⁵⁹Er	¹⁴⁷Er
69	¹⁶⁰Tm	¹⁴⁷Tm
70	¹⁶¹Yb
71	¹⁶²Lu
72	¹⁶³Hf
73	¹⁶⁴Ta
74	¹⁶⁵W
75	¹⁶⁶Re
76	¹⁶⁷Os
77	¹⁶⁸Ir
78	¹⁶⁹Pt
79	¹⁷⁰Au
80	¹⁷¹Hg