Xenon-148
Properties and data of the isotope 148Xe.
See also: List of individual Xenon isotopes (and general data sources).
General data
Name of the isotope:Xenon-148; Xe-148Symbol:148Xe or 14854XeMass number A:148 (= number of nucleons)Atomic number Z:54 (= number of protons)Neutrons N:94Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.7407407407407 (= neutron-proton ratio)Neutron excess (N-Z):40Isotopic mass:147.95856(32) u (atomic weight of Xenon-148)Nuclide mass:147.9289386 u (calculated nuclear mass without electrons)Mass excess:-38.60111 MeVMass defect:1.278493832 u (per nucleus)Nuclear binding energy:1190.90933355 MeV (per nucleus)
8.04668469 MeV (average binding energy per nucleon)Separation energy:SN = 4.31(36) MeV (first neutron)Half-life:4 μsDecay constant λ:1732867.9513999 s-1Specific activity α:7.099030540816 × 10+27 Bq g-1
1.918656902923 × 10+17 Ci g-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:2010
Radioactive Decay
Half-life T½ = 4 μs respectively 4 × 10-7 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 148Cs | ? | 8.31(30) MeV | |
| β-, n | 147Cs | ? | 5.25(30) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 94) and isobaric (same nucleon number A = 148) with Xenon-148. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 94 | Isobar A = 148 |
|---|
| 54 | 148Xe | 148Xe |
| 55 | 149Cs | 148Cs |
| 56 | 150Ba | 148Ba |
| 57 | 151La | 148La |
| 58 | 152Ce | 148Ce |
| 59 | 153Pr | 148Pr |
| 60 | 154Nd | 148Nd |
| 61 | 155Pm | 148Pm |
| 62 | 156Sm | 148Sm |
| 63 | 157Eu | 148Eu |
| 64 | 158Gd | 148Gd |
| 65 | 159Tb | 148Tb |
| 66 | 160Dy | 148Dy |
| 67 | 161Ho | 148Ho |
| 68 | 162Er | 148Er |
| 69 | 163Tm | 148Tm |
| 70 | 164Yb | 148Yb |
| 71 | 165Lu | |
| 72 | 166Hf | |
| 73 | 167Ta | |
| 74 | 168W | |
| 75 | 169Re | |
| 76 | 170Os | |
| 77 | 171Ir | |
| 78 | 172Pt | |
| 79 | 173Au | |
| 80 | 174Hg | |
External data and identifiers
Last update: 2020-10-18
Perma link: https://www.chemlin.org/isotope/xenon-148
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