Dime si son metales o no metales: Sodio, Helio, Aluminio, Cloro, Oro
Metales: Sodio, Aluminio, Oro
No Metales: Cloro, Helio
Tell me whether these are metals or non-metals: Sodium, Helium, Aluminum, Chlorine, Gold
Metals: Sodium, Aluminium, Gold
Non-Metals: Chlorine, Helium