bonjour jai besoin de votre aide svp (Physique)merci de m'aider en avance ! !.... Pergunta de ideia decharlinedesliens

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bonjour jai besoin de votre aide svp (Physique)

merci de m'aider en avance ! !

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S05 1)
nucléons: 40
électrons: 20
protons: 20 (autant de protons que d’électrons)
neutrons: nucléons-protons= 40-20= 20
2)
La charge est positive.
3)
L’ion a perdu 2 électrons.

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charlinedesliens ohhh merci beaucoup vraiment !

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