June 2021 0 73 Report
Coucou! je n'y comprend rien a ces neutrons proton ect .. dans le Sodium ya combien d'électron , de protons, de neutron ?
" " " " " hydrogène " " "" " " " " " " "  " " " " " " "  " " " " " "" " " " "  ?
"  "  "   "Soufre "   "  "  "  " "  " "  " "  " " " " " " " " " " " "  " " " " " "" ?
 " " " " " carbone " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " ?
 " " " "" " oxygene " " " " " " " " " " " " " " " "  " " "  " " " " " " " " " " " ?
 
 Merci d'avance :))       
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