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elodie83
@elodie83
January 2021
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Bonjour ! L'ion (MnO4)- est un ion polyatomique
Combien comporte-t-il d'électrons ? De charges positives ?
merci d'avance*
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aur70
Verified answer
Bonjour
Mn : 25 protons et 25 électrons
O : 8 protons et 8 électrons donc O₄ ->32 protons et 32 électrons
MnO₄⁻ : 57 protons et 58 électrons
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Verified answer
BonjourMn : 25 protons et 25 électrons
O : 8 protons et 8 électrons donc O₄ ->32 protons et 32 électrons
MnO₄⁻ : 57 protons et 58 électrons