Iodine-132
Properties and data of the isotope 132I.
See also: List of individual Iodine isotopes (and general data sources).
General data
Name of the isotope:Iodine-132; I-132Other names:Jod-132Symbol:132I or 13253IMass number A:132 (= number of nucleons)Atomic number Z:53 (= number of protons)Neutrons N:79Isotopic mass:131.907994(4) u (atomic weight of Iodine-132)Nuclide mass:131.8789211 u (calculated nuclear mass without electrons)Mass excess:-85.70304 MeVMass defect:1.19126106 u (per nucleus)Nuclear binding energy:1109.65252982 MeV (per nucleus)
8.40645856 MeV (average binding energy per nucleon)Separation energy:SN = 6.332(4) MeV (first neutron)
SP = 7.781(4) MeV (first proton)Half-life:2.295(13) hDecay constant λ:8.389580979907 × 10-5 s-1Specific activity α:3.856735757011 × 10+17 Bq g-1
10423610.154085 Ci g-1Spin and parity:
(nuclear angular momentum)4+Magnetic dipole moment:μ(μN) = 3.088(7)Quadrupole moment Q:0.08(1) barn (100 fm2)Nuclear g-factor:gl = 0.772Year of discovery:1948
Radioactive Decay
Half-life T½ = 2.295(13) h (hours) respectively 8.262 × 103 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 132Xe | 100 % | 3.575(4) MeV | |
Parent Nuclides
Direct parent isotope is: 132Te.
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 |
|---|
| 132mI | 120(20) keV | 1.387(15) h | (8-) |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 79) and isobaric (same nucleon number A = 132) with Iodine-132. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 79 | Isobar A = 132 |
|---|
| 44 | 123Ru | |
| 45 | 124Rh | |
| 46 | 125Pd | |
| 47 | 126Ag | 132Ag |
| 48 | 127Cd | 132Cd |
| 49 | 128In | 132In |
| 50 | 129Sn | 132Sn |
| 51 | 130Sb | 132Sb |
| 52 | 131Te | 132Te |
| 53 | 132I | 132I |
| 54 | 133Xe | 132Xe |
| 55 | 134Cs | 132Cs |
| 56 | 135Ba | 132Ba |
| 57 | 136La | 132La |
| 58 | 137Ce | 132Ce |
| 59 | 138Pr | 132Pr |
| 60 | 139Nd | 132Nd |
| 61 | 140Pm | 132Pm |
| 62 | 141Sm | 132Sm |
| 63 | 142Eu | 132Eu |
| 64 | 143Gd | |
| 65 | 144Tb | |
| 66 | 145Dy | |
| 67 | 146Ho | |
| 68 | 147Er | |
| 69 | 148Tm | |
| 70 | 149Yb | |
| 71 | 150Lu | |
External data and identifiers
Last update: 2020-10-18
Perma link: https://www.chemlin.org/isotope/iodine-132
© 1996 - 2025 ChemLin
