Iodine-144
Properties and data of the isotope 144I.
See also: List of individual Iodine isotopes (and general data sources).
General data
Name of the isotope:Iodine-144; I-144Other names:Jod-144Symbol:144I or 14453IMass number A:144 (= number of nucleons)Atomic number Z:53 (= number of protons)Neutrons N:91Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.7169811320755 (= neutron-proton ratio)Neutron excess (N-Z):38Isotopic mass:143.95134(43) u (atomic weight of Iodine-144)Nuclide mass:143.9222671 u (calculated nuclear mass without electrons)Mass excess:-45.3265 MeVMass defect:1.251894052 u (per nucleus)Nuclear binding energy:1166.13179807 MeV (per nucleus)
8.09813749 MeV (average binding energy per nucleon)Separation energy:SN = 2.612(447) MeV (first neutron)
SP = 12.089(640) MeV (first proton)Half-life:300 nsDecay constant λ:2310490.6018665 s-1Specific activity α:9.730139762237 × 10+27 Bq g-1
2.629767503307 × 10+17 Ci g-1Spin and parity:
(nuclear angular momentum)Year of discovery:1994
Radioactive Decay
Half-life T½ = 300 ns respectively 3.0 × 10-7 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 144Xe | ? | 11.59(40) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 91) and isobaric (same nucleon number A = 144) with Iodine-144. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 91 | Isobar A = 144 |
|---|
| 52 | 143Te | |
| 53 | 144I | 144I |
| 54 | 145Xe | 144Xe |
| 55 | 146Cs | 144Cs |
| 56 | 147Ba | 144Ba |
| 57 | 148La | 144La |
| 58 | 149Ce | 144Ce |
| 59 | 150Pr | 144Pr |
| 60 | 151Nd | 144Nd |
| 61 | 152Pm | 144Pm |
| 62 | 153Sm | 144Sm |
| 63 | 154Eu | 144Eu |
| 64 | 155Gd | 144Gd |
| 65 | 156Tb | 144Tb |
| 66 | 157Dy | 144Dy |
| 67 | 158Ho | 144Ho |
| 68 | 159Er | 144Er |
| 69 | 160Tm | 144Tm |
| 70 | 161Yb | |
| 71 | 162Lu | |
| 72 | 163Hf | |
| 73 | 164Ta | |
| 74 | 165W | |
| 75 | 166Re | |
| 76 | 167Os | |
| 77 | 168Ir | |
| 78 | 169Pt | |
| 79 | 170Au | |
| 80 | 171Hg | |
External data and identifiers
Last update: 2023-05-15
Perma link: https://www.chemlin.org/isotope/iodine-144
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