Question

1) why is Spin Quantum Number -1/2 for Scandium??
2) Why is spin quantum number +1/2 or -1/2??​

Answer 1

Answer:

Finally spin, this is just where the electron is in the pair, so this is the first electron in the pair, so 1/2. The fist number gives the n quantum number, therefore n=3. ... The energy of an orbital depends on n and l quantum numbers, but does not depend on and quantum numbers.

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