| Oxygen-17 | |
|---|---|
| General | |
| Name, symbol | Oxygen-17,17O |
| Neutrons | 9 |
| Protons | 8 |
| Nuclide data | |
| Natural abundance | 0.0373% SMOW[1] 0.0377421% (atmosphere[2]) |
| Isotope mass | 16.9991315 u u |
| Spin | 5/2 |
| Binding energy | 131763 keV keV |
Oxygen-17 is the only stable isotope of oxygen possessing a nuclear spin. It was a product out of 14N and 42He2+ the early man-made transmutation conducted by Frederick Soddy and Ernest Rutherford in 1917-1919[3]. The isotope was first hypothesized and subsequently imaged by Patrick Blackett in Rutherford's lab 1924[4]:
Of the nature of the integrated nucleus little can be said without further data. It must however have a mass 17, and provided no other nuclear electrons are gained or lost in the process, an atomic number 8. It ought therefore to be an isotope of oxygen. If it is stable it should exist on the earth.
Its natural abundance in earth atmosphere was finally detected 1929 by Giauque and Johnson in absorption spectra[5].
The nuclear spin allows through NMR static and dynamic non-invasive studies of metabolic pathways of compounds incorporating oxygen (e.g. turn-over rate during oxidative phosphorylation in mitochondria).
Characteristics
- Excess mass: -809 keV
- Possible parent nuclides: β from 17N, electron capture from 17F
See also
References
- ^ Hoefs, Jochen (1997). Stable Isotope Geochemistry. Springer Verlag. ISBN 978-3540402275.
- ^ Blunier, Thomas; Bruce Barnett, Michael L. Bender, Melissa B. Hendricks (2002). "Biological oxygen productivity during the last 60,000 years from triple oxygen isotope measurements". Global Biogeochemical Cycles. 6 16 (3). doi:.
- ^ Rutherford, Ernest (1919). "Collision of alpha particles with light atoms IV. An anomalous effect in nitrogen.". Philosophical Magazine. 6th series 37: 581–587.
- ^ a b Blackett, P. M. S. (1925). "The Ejection of Protons from Nitrogen Nuclei, Photographed by the Wilson Method". Proceedings of the Royal Society of London. Series A 107 (742): 349–360.
- ^ Giauque, W. F. (1929). "AN ISOTOPE OF OXYGEN, MASS 17, IN THE EARTH'S ATMOSPHERE". J. Am. Chem. Soc. 51 (12): 3528–3534. doi:.
| Lighter: oxygen-16 |
Oxygen-17 is an isotope of oxygen |
Heavier: oxygen-18 |
| Decay product of: nitrogen-17, fluorine-17 |
Decay chain of Oxygen-17 |
Decays to: stable |
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