The conversation between human and AI assistant.
[|Human|] Tell me whether these are metals or non-metals: Sodium, Helium, Aluminum, Chlorine, Gold
[|AI|] Metals: Sodium, Aluminium, Gold
Non-Metals: Chlorine, Helium
[|Human|] 
Tell me whether these are metals or non-metals: Sodium, Helium, Aluminum, Chlorine, Gold