Destroyer GCHEM: #84

[informatique]

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How do I figure out how to determine if the 3D subshell will fill before the 4S subshell leaving an unpaired electron in the S subshell?

 

[Hugh Mannity]

Only Cu and Cr do that for the first 40 elements.

 

[DDSguyLA]

you only need to look out for Cu and Cr. it's just them two.

 

[informatique]

thanks