Oxygen-23 is a radioisotope of the chemical element oxygen, which has 15 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 23. The very short-lived, only artificially produced, unstable and thus radioactive nuclide has no practical significance; the study of 23O is exclusively for academic purposes.
The radioactive nuclide was discovered by irradiating thorium-232 with neon-22 ions accelerated to 174 MeV [1].
See also: list of Oxygen isotopes.
Half-life T½ = 0.097(8) s respectively 9.7 × 10-2 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|---|---|---|---|
β- | 23F | 93(2) % | 11.340(130) MeV | |
β-, n | 22F | 7(2) % | 3.757(122) MeV |
Z | Isotone N = 15 | Isobar A = 23 |
---|---|---|
5 | 20B | |
6 | 21C | |
7 | 22N | 23N |
8 | 23O | 23O |
9 | 24F | 23F |
10 | 25Ne | 23Ne |
11 | 26Na | 23Na |
12 | 27Mg | 23Mg |
13 | 28Al | 23Al |
14 | 29Si | 23Si |
15 | 30P | |
16 | 31S | |
17 | 32Cl | |
18 | 33Ar | |
19 | 34K | |
20 | 35Ca | |
21 | 36Sc |
[1] - A. G. Artukh et al.:
New isotopes 21N, 23O, 24O and 25F, produced in nuclear reactions with heavy ions.
In: Physics Letters B, 32(1), (1970), DOI 10.1016/0370-2693(70)90332-1.
Last update: 2024-10-10
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