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jeanne_31
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Coucou @jeanne_31 ! 

 

Il y a 14 heures, jeanne_31 a dit :

si j'ai 4s1  3d10    j'ai 1 ou 11 e- de valence ? 

Ici c'est bien 11 e- de valence (ceux de 4s et 3d). 

 

Au cas où en résumé pour les couches de valence ça donne : 

  • bloc s : couche de valence = xs
  • bloc p : couche de valence = xs xp
  • bloc d : couche de valence = xs (x-1)d

 

N'hésite pas si tu as des questions ! 🥰

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