Neodymium-134

Properties and data of the isotope ¹³⁴Nd.

Content

General data

Name of the isotope:Neodymium-134; Nd-134Symbol:¹³⁴Nd or 13460NdMass number A:134 (= number of nucleons)Atomic number Z:60 (= number of protons)Neutrons N:74Isotopic mass:133.918790(13) u (atomic weight of Neodymium-134)Nuclide mass:133.8858777 u (calculated nuclear mass without electrons)Mass excess:-75.64663 MeVMass defect:1.191915704 u (per nucleus)Nuclear binding energy:1110.26232678 MeV (per nucleus)
8.28553975 MeV (average binding energy per nucleon)Separation energy:S_N = 11.39(5) MeV (first neutron)
S_P = 4.998(17) MeV (first proton)Half-life:8.5(15) minDecay constant λ:0.001359112118745 s^-1Specific activity α:6.153958363555 × 10⁺¹⁸ Bq g^-1
166323199.01502 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Charge radius:4.9128(26) femtometer fmYear of discovery:1970

Radioactive Decay

Half-life T_½ = 8.5(15) min (minutes) respectively 5.10 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹³⁴Pr	100 %	2.882(24) MeV

Parent Nuclides

Direct parent isotope is: ¹³⁴Pm.

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
^134mNd	2293.0(4) keV	410(30) μs	(8)-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 74) and isobaric (same nucleon number A = 134) with Neodymium-134. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 74	Isobar A = 134
41	¹¹⁵Nb
42	¹¹⁶Mo
43	¹¹⁷Tc
44	¹¹⁸Ru
45	¹¹⁹Rh
46	¹²⁰Pd
47	¹²¹Ag
48	¹²²Cd	¹³⁴Cd
49	¹²³In	¹³⁴In
50	¹²⁴Sn	¹³⁴Sn
51	¹²⁵Sb	¹³⁴Sb
52	¹²⁶Te	¹³⁴Te
53	¹²⁷I	¹³⁴I
54	¹²⁸Xe	¹³⁴Xe
55	¹²⁹Cs	¹³⁴Cs
56	¹³⁰Ba	¹³⁴Ba
57	¹³¹La	¹³⁴La
58	¹³²Ce	¹³⁴Ce
59	¹³³Pr	¹³⁴Pr
60	¹³⁴Nd	¹³⁴Nd
61	¹³⁵Pm	¹³⁴Pm
62	¹³⁶Sm	¹³⁴Sm
63	¹³⁷Eu	¹³⁴Eu
64	¹³⁸Gd	¹³⁴Gd
65	¹³⁹Tb
66	¹⁴⁰Dy
67	¹⁴¹Ho