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why orbitals like s, px, py, pz etc can hold maximum of 2 electrons?
Why not some other number?
Why not some other number?
why orbitals like s, px, py, pz etc can hold maximum of 2 electrons?
Why not some other number?
The link is assuming that we are aware that the orbital can hold maximum of two electrons and then assigning 1/2 and -1/2 spins to two electrons.Look up Pauli exclusion principle. http://chemwiki.ucdavis.edu/Inorganic_Chemistry/Electronic_Configurations/Pauli_Exclusion_Principle
Why in Pauli exclusion principle the electrons have 1/2 and -1/2 spin accounting for 2 electrons?Electrons have spin 1/2, so they just have two different states (called "up" and "down"). The Pauli exclusion principle does not allow multiple electrons in the same state.
For example if we have 1/4 spin, then we can have 4 electrons in an orbital, with 2 electrons having 1/4 spin and other 2 -1/4 spin.
Not read that book. I think it is taught in university. Is that true? Well I was reading a high school level stuff.
Okay and thanks, but why are you thanking Bill. I nowhere find Bill in the discussion.That being the case you just have to take our word for it.
Thanks
Bill
Okay and thanks, but why are you thanking Bill. I nowhere find Bill in the discussion.
Okay and thanks, but why are you thanking Bill. I nowhere find Bill in the discussion.
To extend that: particles with spin 1 can have +1, 0 and -1, particles with spin 3/2 can have +3/2, +1/2, -1/2, -3/2 and so on. Particles with spin 0 have no choice.Spin 1/4 is impossible - its a basic property of spin as just about any book on QM will derive eg see page 144 of Dirac - Principles Of QM which is the book the came to hand. It can only be values +-n/2 where n is an integer. It turns out for electrons, as explained by Quantum Field Theory, they have only values +-1/2.
Thanks. Not read about this earlier. Will see to it some time later.To extend that: particles with spin 1 can have +1, 0 and -1, particles with spin 3/2 can have +3/2, +1/2, -1/2, -3/2 and so on. Particles with spin 0 have no choice.
The exclusion principle applies to fermions only, those are particles with non-integer spin values (1/2, 3/2, ...).
And I always thought that it is an indian name! :-)I am Bill - that's what the b in bhobba is.
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