Numero 2 chimie s’il vous plait.... Pergunta de ideia dercha524

rcha524 @rcha524

March 2022 1 72 Report

Numero 2 chimie s’il vous plait

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arixdtl A- on sait que:
le nombre de proton = nombre d’électrons
Donc l’atome de chlore possède 17 électrons

b- nombre de masse = nucléon = protons + neutrons

17 + 18 =35

Donc le nombre de masse de l’atome de chlore est de 35

c) image

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