I am studying atomic structure and found out that Chromium has an exception in electronic configuration. One electron from 4s jumps to 3d to achieve stability.

let's say the spin of transferred electron is +1/2. Then the other 4s electron should have -1/2. Then, are all the 3d electrons of +1/2 spin or some may have -1/2 spin too?

  • $\begingroup$ Hund's rule still applies here. $\endgroup$
    – Zhe
    May 25, 2021 at 15:28
  • $\begingroup$ @Zhee,but the multiplicity changes,so what would be correct $\endgroup$ May 26, 2021 at 4:10
  • $\begingroup$ Your question is not particularly clear on when you want to make this observation. Immediately? After a long time? $\endgroup$
    – Zhe
    May 27, 2021 at 12:30
  • $\begingroup$ whenever it becomes stable $\endgroup$ May 27, 2021 at 18:04
  • $\begingroup$ Define "stable". $\endgroup$
    – Zhe
    May 28, 2021 at 11:34


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