Répondre :
Aluminium = Al
Cuivre = Cu
Sodium = Na
Carbone = C
Pb = plomb
Azote = N
S = soufre
Cuivre = Cu
Sodium = Na
Carbone = C
Pb = plomb
Azote = N
S = soufre
Réponse
AI = Aluminium
C = carbone
N = Azote
S = souffre
Cu = cuivre
Na = sodium
Pb = Plomb
Voila.