Property talk:P1122
Documentation
dimensionless rational quantum number; the intrinsic spin angular momentum divided by the Dirac constant
List of violations of this constraint: Database reports/Constraint violations/P1122#Range
List of violations of this constraint: Database reports/Constraint violations/P1122#Type Q1621273, Q25276, SPARQL
This property is being used by: Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.) |
why limited to particles?[edit]
Spin quantum number equally applies to nuclei, atoms and molecules (ground states or particular excited states), and also to quasiparticle states in solids and similar quantum phenomena. I don't understand why this property is limited to particles (subclasses of particle (Q1621273) - and in the description it says subatomic particles, subatomic particle (Q177013)). I think we should remove the constraint, or at least add other suitable top-level items to the constraint if that makes more sense. A similar issue exists for parity quantum number (P1123). Also the range limit isn't really right - just randomly checking, bismuth-205 has a ground-state spin of 9/2 and I believe there are others even higher. ArthurPSmith (talk) 21:04, 5 November 2015 (UTC)
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- I've modified the constraint to allow isotopes to have this property. Also greatly increased the allowed range, as many nuclides have quite high spin quantum numbers. ArthurPSmith (talk) 00:26, 26 June 2016 (UTC)
Is there a way to represent classes of numbers?[edit]
This property allows to use only numbers. How can I indicate that bosons have integer spins and fermions half-integer spins?--Malore (talk) 17:56, 27 April 2018 (UTC)