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Miss571
@Miss571
June 2021
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L'atome d'oxygène possède 8 électrons. il peut former l'ion O^(2-).
Decris la composition de l'atome d'oxygéne puis de l'ion oxyde qu'il peut former.
Voilá. sachant que l'ion O2 contion 10 electron comment decrire la composition.
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famoumss
O2- : ion oxygène, Z=8 (8 protons), ce qui fait 8+2=10 électrons.
O2- : (K)2 (L)8
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