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perroud 3e Atome

description de l'atome

QuestionAnswer
ATOME (particules le constituant ?) électron - proton + neutron
ATOME (charge électrique ?) neutre car il a autant de protons que d'électrons (je suis ?)
NOYAU (taille ?) 100 000 fois plus petit que l'atome (je suis ?)
NOYAU (particules ?) les nucléons (protons + neutrons) (situés dans ?)
Que veut dire A ? Que nous dit-il ? Nombre de masse = nombre de nucléons
Que veut dire Z ? Que nous dit-il ? numéro atomique = nombre de protons
Comment calculer le nombre de neutron ? A - Z (permet de donner ?)
ATOME (répartition de la masse ?) la masse est essentiellement contenu dans le noyau (je suis ?)
Created by: eraxit
 

 



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