Why is deuteron spin 1?
The reason why deuterium occurs only with spin 1 is that nucleon-nucleon interactions are spin-dependent, and the energy scales are such that the state with anti-parallel spins (Sz=0) is energetically unstable.
What is the nuclear spin of deuterium?
1.6 Hydrogen physical and chemical properties
| Normal hydrogen (protium) | Deuterium | |
|---|---|---|
| Nuclear spin | 1/2 | 1 |
| Nuclear magnetic moment (nuclear magnetons) | 2.7927 | 0.8574 |
| Nuclear quadrupole moment | 0 | 2.77 (10− 27) cm2 |
| Electronegativity (Pauling) | 2.1 | ~ 2.1 |
Is deuterium spin active?
Although deuterium has a nuclear spin, deuterium NMR and proton NMR require greatly different operating frequencies at a given magnetic field strength. Consequently, deuterium NMR absorptions are not detected under the conditions used for proton NMR, so deuterium is effectively “silent” in proton NMR.
What is the spin quantum number of deuterium?
A deuterium nucleus is composed of a proton and a neutron. Both have spin 1/2 so I would expect the deuterium to have two possible spins: 1 for the triplet and 0 for the singlet. But apparently deuterium always has spin 1 and the spin 0 state doesn’t exist.
Why does the deuterium nucleus always have spin 1?
A deuterium nucleus is composed of a proton and a neutron. Both have spin 1/2 so I would expect the deuterium to have two possible spins: 1 for the triplet and 0 for the singlet. But apparently deuterium always has spin 1 and the spin 0 state doesn’t exist. Why?
How are Diatomic deuterium and hydrogen the same?
Diatomic deuterium (D 2) has nuclear spin isomers like diatomic hydrogen, but with different populations of the two forms because the deuterium nucleus (deuteron) is a boson with nuclear spin equal to one.
How is the stable deuteron an antisymmetric state?
In the stable deuteron the state is made antisymmetric by the isospin part of the wavefunction: the deuteron is a (symmetric) spin triplet but an (antisymmetric) isospin singlet.
Who is the leading supplier of deuterium in the world?
The world’s leading supplier of deuterium was Atomic Energy of Canada Limited, in Canada, until 1997, when the last heavy water plant was shut down. Canada uses heavy water as a neutron moderator for the operation of the CANDU reactor design. Another major producer of heavy water is India.