Hydrogen-4
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| Hydrogen-4 | |
|---|---|
| General | |
| Name, symbol | Hydrogen-4,4H |
| Neutrons | 3 |
| Protons | 1 |
| Nuclide data | |
| Half-life | (1.39 ± 0.10) × 10−22 seconds[1] |
| Isotope mass | 4.02781 ± 0.00011[2] u |
Hydrogen-4 is a highly unstable isotope of hydrogen. The nucleus consists of a proton and three neutrons. It has been synthesised in the laboratory by bombarding tritium with fast-moving deuterium nuclei.[3] In this experiment, the tritium nuclei captured neutrons from the fast-moving deuterium nucleus. The presence of the hydrogen-4 was deduced by detecting the emitted protons. Its atomic mass is 4.02781 ± 0.00011[2]. It decays through neutron emission and has a half-life of (1.39 ± 0.10) × 10−22 seconds.[1]
[edit] Quadium
In the 1955 satirical novel The Mouse That Roared, the name quadium was given to the hydrogen-4 isotope that powered the Q-bomb that the Duchy of Grand Fenwick captured from the United States.
[edit] See also
[edit] References
- ^ a b c d p. 27, The NUBASE evaluation of nuclear and decay properties, G. Audi, O. Bersillon, J. Blachot, and A. H. Wapstra, Nuclear Physics A 729 (2003), pp. 3–128.
- ^ a b c AME2003 atomic mass evaluation, Atomic Mass Data Center. Accessed on line November 15, 2008.
- ^ Hydrogen-4 and Hydrogen-5 from t+t and t+d transfer reactions studied with a 57.5-MeV triton beam, G. M. Ter-Akopian et al., Nuclear Physics in the 21st Century: International Nuclear Physics Conference INPC 2001, American Institute of Physics Conference Proceedings 610, pp. 920-924, doi:10.1063/1.1470062.
| Lighter: Hydrogen-3 |
Hydrogen-4 is an isotope of Hydrogen |
Heavier: Hydrogen-5 |
| Decay product of: None |
Decay chain of Hydrogen-4 |
Decays to: Hydrogen-3 |
