Indium-136
Properties and data of the isotope 136In.
See also: list of Indium isotopes.
General data
Name of the isotope:Indium-136; In-136Symbol:136In or 13649InMass number A:136 (= number of nucleons)Atomic number Z:49 (= number of protons)Neutrons N:87Isotopic mass:135.95651(43) u (atomic weight of Indium-136)Nuclide mass:135.9296311 u (calculated nuclear mass without electrons)Mass excess:-40.51067 MeVMass defect:1.18076426 u (per nucleus)Nuclear binding energy:1099.8748236 MeV (per nucleus)
8.08731488 MeV (average binding energy per nucleon)Separation energy:SN = 2.05(57) MeV (first neutron)Half-life:85 msDecay constant λ:8.1546727124699 s-1Specific activity α:3.637673166013 × 10+22 Bq g-1
983154909733.27 Ci g-1Spin and parity:
(nuclear angular momentum)Year of discovery:2014
Radioactive Decay
Half-life T½ = 85 ms respectively 8.5 × 10-2 seconds s.
| Decay mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 136Sn | 100 % | 15.39(50) MeV | |
| β-, n | 135Sn | ? | 12.05(40) MeV | |
| β-, 2n | 134Sn | ? | | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 87) and isobaric (same nucleon number A = 136) with Indium-136. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| OZ | Isotone N = 87 | Isobar A = 136 |
|---|
| 49 | 136In | 136In |
| 50 | 137Sn | 136Sn |
| 51 | 138Sb | 136Sb |
| 52 | 139Te | 136Te |
| 53 | 140I | 136I |
| 54 | 141Xe | 136Xe |
| 55 | 142Cs | 136Cs |
| 56 | 143Ba | 136Ba |
| 57 | 144La | 136La |
| 58 | 145Ce | 136Ce |
| 59 | 146Pr | 136Pr |
| 60 | 147Nd | 136Nd |
| 61 | 148Pm | 136Pm |
| 62 | 149Sm | 136Sm |
| 63 | 150Eu | 136Eu |
| 64 | 151Gd | 136Gd |
| 65 | 152Tb | 136Tb |
| 66 | 153Dy | |
| 67 | 154Ho | |
| 68 | 155Er | |
| 69 | 156Tm | |
| 70 | 157Yb | |
| 71 | 158Lu | |
| 72 | 159Hf | |
| 73 | 160Ta | |
| 74 | 161W | |
| 75 | 162Re | |
| 76 | 163Os | |
| 77 | 164Ir | |
Literature and References
[1] - M. Thoennessen:
2015 Update of the discoveries of nuclides.
In: International Journal of Modern Physics E, (2016), DOI 10.1142/S0218301316300046.
Last update: 2020-10-17
Perma link: https://www.chemlin.org/isotope/indium-136
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