Praseodymium-132

Properties and data of the isotope ¹³²Pr.

Contents

See also: list of Praseodymium isotopes.

General data

Name of the isotope:Praseodymium-132; Pr-132Symbol:¹³²Pr or 13259PrMass number A:132 (= number of nucleons)Atomic number Z:59 (= number of protons)Neutrons N:73Isotopic mass:131.91924(3) u (atomic weight of Praseodymium-132)Nuclide mass:131.8868762 u (calculated nuclear mass without electrons)Mass excess:-75.22746 MeVMass defect:1.174975756 u (per nucleus)Nuclear binding energy:1094.48286686 MeV (per nucleus)
8.29153687 MeV (average binding energy per nucleon)Separation energy:S_N = 9.00(6) MeV (first neutron)
S_P = 2.81(4) MeV (first proton)Half-life:1.6(3) minDecay constant λ:0.0072202831308328 s^-1Specific activity α:3.319203210877 × 10⁺¹⁹ Bq g^-1
897081948.88592 Ci g^-1Spin and parity:
(nuclear angular momentum)(2)+Year of discovery:1974

Radioactive Decay

Half-life T_½ = 1.6(3) min (minutes) respectively 9.6 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	¹³²Ce	100 %	7.24(4) MeV

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
^132mPr		20 s	(5+)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 73) and isobaric (same nucleon number A = 132) with Praseodymium-132. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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