Promethium-130

Properties and data of the isotope ¹³⁰Pm.

Content

General data

Name of the isotope:Promethium-130; Pm-130Symbol:¹³⁰Pm or 13061PmMass number A:130 (= number of nucleons)Atomic number Z:61 (= number of protons)Neutrons N:69Isotopic mass:129.94053(21) u (atomic weight of Promethium-130)Nuclide mass:129.9070692 u (calculated nuclear mass without electrons)Mass excess:-55.39595 MeVMass defect:1.134676156 u (per nucleus)Nuclear binding energy:1056.94403126 MeV (per nucleus)
8.1303387 MeV (average binding energy per nucleon)Separation energy:S_N = 10.59(36) MeV (first neutron)
S_P = 0.37(28) MeV (first proton)Half-life:2.6(2) sDecay constant λ:0.26659506944613 s^-1Specific activity α:1.244552760286 × 10⁺²¹ Bq g^-1
33636561088.816 Ci g^-1Spin and parity:
(nuclear angular momentum)(4.5.6)Year of discovery:1985

Radioactive Decay

Half-life T_½ = 2.6(2) s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹³⁰Nd	100 %	11.20(20) MeV
EE, p	¹²⁹Pr	?

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 69) and isobaric (same nucleon number A = 130) with Promethium-130. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 69	Isobar A = 130
38	¹⁰⁷Sr
39	¹⁰⁸Y
40	¹⁰⁹Zr
41	¹¹⁰Nb
42	¹¹¹Mo
43	¹¹²Tc
44	¹¹³Ru
45	¹¹⁴Rh
46	¹¹⁵Pd
47	¹¹⁶Ag	¹³⁰Ag
48	¹¹⁷Cd	¹³⁰Cd
49	¹¹⁸In	¹³⁰In
50	¹¹⁹Sn	¹³⁰Sn
51	¹²⁰Sb	¹³⁰Sb
52	¹²¹Te	¹³⁰Te
53	¹²²I	¹³⁰I
54	¹²³Xe	¹³⁰Xe
55	¹²⁴Cs	¹³⁰Cs
56	¹²⁵Ba	¹³⁰Ba
57	¹²⁶La	¹³⁰La
58	¹²⁷Ce	¹³⁰Ce
59	¹²⁸Pr	¹³⁰Pr
60	¹²⁹Nd	¹³⁰Nd
61	¹³⁰Pm	¹³⁰Pm
62	¹³¹Sm	¹³⁰Sm
63	¹³²Eu	¹³⁰Eu