Also,

If the magnetic orbitals are non-orthogonal, the unpaired spins are in effectively the same extended orbital, so must pair anti-parallel in accordance with the Pauli principle, which gives rise to antiferromagnetism. If the spins are unequal, a net moment arises, which is called ferrimagnetism and is the process ehind nearly all permanent magnets you'll come across.
Guess what I do for a job...
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Colonel Boris "...a desperate Buzzfeed imitation...",
Tue 12 Oct 2010, 14:14,
archived)
Sort of like chicken
Chicken is not magnetic, despite containing iron. Chickenburgers repel metal cutlery and are best eaten in a bap with tomato and lettuce.
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Tribs 🦇 ↓ dn ʎɐʍ sᴉɥʇ ↓🦇,
Tue 12 Oct 2010, 14:18,
archived)
are you a dustbinman?
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4Q just lurking,
Tue 12 Oct 2010, 14:18,
archived)
Fridge door builder?
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An Eagle in Your Mind,
Tue 12 Oct 2010, 14:30,
archived)