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Cerium-132

Properties and data of the isotope 132Ce.


Contents

See also: list of Cerium isotopes.

 

General data

Name of the isotope:Cerium-132; Ce-132Symbol:132Ce or 13258CeMass number A:132 (= number of nucleons)Atomic number Z:58 (= number of protons)Neutrons N:74Isotopic mass:131.911464(22) u (atomic weight of Cerium-132)Nuclide mass:131.8796486 u (calculated nuclear mass without electrons)Mass excess:-82.47075 MeVMass defect:1.18359164 u (per nucleus)Nuclear binding energy:1102.50851111 MeV (per nucleus)
8.35233721 MeV (average binding energy per nucleon)
Separation energy:SN = 10.83(40) MeV (first neutron)
SP = 5.99(3) MeV (first proton)
Half-life:3.51(11) hDecay constant λ:5.485495256093 × 10-5 s-1Specific activity α:2.521711841122 × 10+17 Bq g-1
6815437.40844 Ci g-1
Spin and parity:
(nuclear angular momentum)
0+Year of discovery:1960

 

Radioactive Decay

Half-life T½ = 3.51(11) h (hours) respectively 1.2636 × 104 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
EC/β+132La100 %1.25(4) MeV

 

Parent Nuclides

Direct parent isotope is: 132Pr.

 

Nuclear Isomers

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

Nuclear IsomerExcitation EnergyHalf-lifeSpin
132mCe2341.15(21) keV9.4(3) ms(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 = 132) with Cerium-132. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 74Isobar A = 132
41115Nb
42116Mo
43117Tc
44118Ru
45119Rh
46120Pd
47121Ag132Ag
48122Cd132Cd
49123In132In
50124Sn132Sn
51125Sb132Sb
52126Te132Te
53127I132I
54128Xe132Xe
55129Cs132Cs
56130Ba132Ba
57131La132La
58132Ce132Ce
59133Pr132Pr
60134Nd132Nd
61135Pm132Pm
62136Sm132Sm
63137Eu132Eu
64138Gd
65139Tb
66140Dy
67141Ho

 

External data and identifiers

Adopted Levels, Gammas:NuDat 132Ce

 


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Last update: 2020-10-19


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