

structure de la matière
Presentation
•
Chemistry
•
1st - 8th Grade
•
Hard
Stephane DRUET
Used 3+ times
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4 Slides • 1 Question
1
structure de la matière

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3
l'atome
un atome est une particule de la matière composé :
d'un noyau : composé de protons charges positives (noir) et de neutrons (rouge) pas de charge électrique
d'un nuage électronique charges négatives (bleu)
l'atome est une particule électriquement neutre
4
Multiple Choice
Un atome contient
autan de protons que d'électrons
plus de protons que d'électrons
5
la molécule
Une molécule est un groupement d'au moins deux atomes indentiques (exemple O2) ou différents (NaCl)
structure de la matière

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