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:
Non-lustrous
Soft metal
High density
Ductility
1. Thin sheets : Malleable :: Stretching into wire:
 
2. Lithium :
:: Iron : Hard metal
 
3. Gold : Lustrous :: Sulphur  : .