Lanthanum-130

Properties and data of the isotope ¹³⁰La.

Contents

General data

Name of the isotope:Lanthanum-130; La-130Symbol:¹³⁰La or 13057LaMass number A:130 (= number of nucleons)Atomic number Z:57 (= number of protons)Neutrons N:73Isotopic mass:129.912369(28) u (atomic weight of Lanthanum-130)Nuclide mass:129.8811021 u (calculated nuclear mass without electrons)Mass excess:-81.62775 MeVMass defect:1.166196692 u (per nucleus)Nuclear binding energy:1086.30522142 MeV (per nucleus)
8.35619401 MeV (average binding energy per nucleon)Separation energy:S_N = 8.37(3) MeV (first neutron)
S_P = 3.853(28) MeV (first proton)Half-life:8.7(1) minDecay constant λ:0.0013278681619922 s^-1Specific activity α:6.198921794529 × 10⁺¹⁸ Bq g^-1
167538426.87916 Ci g^-1Spin and parity:
(nuclear angular momentum)3(+)Year of discovery:1961

Radioactive Decay

Half-life T_½ = 8.7(1) min (minutes) respectively 5.22 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	¹³⁰Ba		5.634(26) MeV

Parent Nuclides

Direct parent isotope is: ¹³⁰Ce.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 73) and isobaric (same nucleon number A = 130) with Lanthanum-130. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 73	Isobar A = 130
41	¹¹⁴Nb
42	¹¹⁵Mo
43	¹¹⁶Tc
44	¹¹⁷Ru
45	¹¹⁸Rh
46	¹¹⁹Pd
47	¹²⁰Ag	¹³⁰Ag
48	¹²¹Cd	¹³⁰Cd
49	¹²²In	¹³⁰In
50	¹²³Sn	¹³⁰Sn
51	¹²⁴Sb	¹³⁰Sb
52	¹²⁵Te	¹³⁰Te
53	¹²⁶I	¹³⁰I
54	¹²⁷Xe	¹³⁰Xe
55	¹²⁸Cs	¹³⁰Cs
56	¹²⁹Ba	¹³⁰Ba
57	¹³⁰La	¹³⁰La
58	¹³¹Ce	¹³⁰Ce
59	¹³²Pr	¹³⁰Pr
60	¹³³Nd	¹³⁰Nd
61	¹³⁴Pm	¹³⁰Pm
62	¹³⁵Sm	¹³⁰Sm
63	¹³⁶Eu	¹³⁰Eu
64	¹³⁷Gd
65	¹³⁸Tb
66	¹³⁹Dy
67	¹⁴⁰Ho