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12, with 6 left over.
630/7 = 90 so there are 90 7s in 630
5.28751 7s equals 37.
There is one 7s orbital with two sub-orbitals: 7s(+1/2) and 7s(-1/2) . A picture of this 7s orbital is in 'Related links'
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answer:4
80.
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