### Electron Configuration Orders?

Posted:

**Tue May 01, 2018 12:45 pm**When doing electron configuration, do you have to keep the same n-values together?

For example, I wrote the electron configuration for antimony (Sb) as:

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^3

Or [Kr] 5s^2 4d^10 5p^3

Would it be different if I grouped it by n-values? Like:

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 5s^2 5p^3

Or [Kr] 4d^10 5s^2 5p^3

If they aren't different, which one is preferred? Thank you!

For example, I wrote the electron configuration for antimony (Sb) as:

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^3

Or [Kr] 5s^2 4d^10 5p^3

Would it be different if I grouped it by n-values? Like:

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 5s^2 5p^3

Or [Kr] 4d^10 5s^2 5p^3

If they aren't different, which one is preferred? Thank you!