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### Electron Configuration

Posted: Sun Oct 20, 2019 3:47 pm
What exactly is the order that electrons fill up orbitals? With what atoms do we start using the d-orbital?

### Re: Electron Configuration

Posted: Sun Oct 20, 2019 3:51 pm
The s shell fills up. Then the p shell fills up. Then d and f if they are applicable. The transition metals are where the d-orbital begins

### Re: Electron Configuration

Posted: Sun Oct 20, 2019 3:59 pm
The order of electrons that fill up orbitals are written as 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, and so on.

### Re: Electron Configuration

Posted: Sun Oct 20, 2019 6:02 pm
You start using the d orbital after the 4s state since the 4s state is slightly lower energy than 3d.

### Re: Electron Configuration

Posted: Sun Oct 20, 2019 7:10 pm
The order of filling orbitals is: 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^6, and so on.

### Re: Electron Configuration

Posted: Sun Oct 20, 2019 7:17 pm
The order goes like 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 and so on.