Tell me whether these are metals or non-metals: Sodium, Helium, Aluminum, Chlorine, Gold
Metals: Sodium, Aluminium, Gold
Non-Metals: Chlorine, Helium
Instruction: Tell me whether these are metals or non-metals: Sodium, Helium, Aluminum, Chlorine, Gold
Context: 
Response: Metals: Sodium, Aluminium, Gold
Non-Metals: Chlorine, Helium