Oxygen-26 is a radioisotope of the chemical element oxygen, which has 18 neutrons in its atomic nucleus in addition to the element-specific 8 protons; the sum of the number of these atomic nucleus building blocks results in a mass number of 26. The very short-lived, only artificially produced, unstable and thus radioactive nuclide has no practical significance; the study of 26O is exclusively for academic purposes.
See also: list of Oxygen isotopes.
Half-life T½ = 4.2(33) ps respectively 4.2 × 10-12 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|---|---|---|---|
2n | 24O | 100 % |
Z | Isotone N = 18 | Isobar A = 26 |
---|---|---|
7 | 25N | |
8 | 26O | 26O |
9 | 27F | 26F |
10 | 28Ne | 26Ne |
11 | 29Na | 26Na |
12 | 30Mg | 26Mg |
13 | 31Al | 26Al |
14 | 32Si | 26Si |
15 | 33P | 26P |
16 | 34S | 26S |
17 | 35Cl | |
18 | 36Ar | |
19 | 37K | |
20 | 38Ca | |
21 | 39Sc | |
22 | 40Ti | |
23 | 41V | |
24 | 42Cr | |
25 | 43Mn |
[1] - C. Caesar et al.:
Beyond the neutron drip line: The unbound oxygen isotopes 25O and 26O.
In: Physical Review C, (2013), DOI 10.1103/PhysRevC.88.034313.
[2] - Sonja Storck-Dutine:
Measurement of the Neutron-Decay Lifetime of the 26O Ground State.
In: Dissertation TU Darmstadt, (2023), DOI 10.26083/tuprints-00023768.
Last update: 2024-10-10
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