Neodymium-133m1

Properties and data of the isotope ¹³³Nd.

Content

General data

Name of the isotope:Neodymium-133m1; Nd-133m1Symbol:¹³³Nd or 13360NdMass number A:133 (= number of nucleons)Atomic number Z:60 (= number of protons)Neutrons N:73Isotopic mass:132.92235(5) u (atomic weight of Neodymium-133m1)
Excitation energy: 127.97(12) keVNuclide mass:132.8894377 u (calculated nuclear mass without electrons)Mass excess:-72.33051 MeVMass defect:1.179690788 u (per nucleus)Nuclear binding energy:1098.87489088 MeV (per nucleus)
8.26221722 MeV (average binding energy per nucleon)Half-life:70 sDecay constant λ:0.0099021025794278 s^-1Specific activity α:4.517564889610 × 10⁺¹⁹ Bq g^-1
1220963483.6785 Ci g^-1Spin and parity:
(nuclear angular momentum)(1/2+)

Radioactive Decay

Half-life T_½ = 70 s respectively 7.0 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹³³Pr	?
Iso	¹³³Nd	?

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
¹³³Nd		70(10) s	(7/2+)
^133m2Nd	176.10(10) keV	301(18) ns	(9/2-)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 73) and isobaric (same nucleon number A = 133) with Neodymium-133m1. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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