Question

Write the four quantum number values of the 21st electron and for the 20th electron of scandium

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Answer 1

Answer:

Explanation:

electronic configuration of scandium :

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^1

the four Quantum numbers for the the 21st electron of scandium is

1. principle Quantum numbers: 3
2. angular momentum Quantum number : 2
3. magnetic Quantum number : -2
4. spin Qunatum number :- +1/2

The four Quantum numbers for the 20th electron of scandium is

1. principle Quantum numbers: 4
2. angular momentum Quantum number : 0
3. magnetic Quantum number: 0
4. spin Quantum number : -1/2