Drag the drop the correct answer:
 
Identify the relationship between the complete pair, understand the logic and apply it to the incomplete pair.
 
Answer variants:
Conductivity
Non-lustrous
Soft metal
Ductility
 
1. Thin sheets : Malleable :: Thin wires:
 
2. Sodium :
:: Iron : Hard metal
 
3. Gold : Lustrous :: Sulphur  : .