What other characteristics do you expect the element to possess

An element is sonorous and highly

ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess? 

Answer: Since a metal is sonorous and ductile, thus if an element possesses these qualities this will be kept under the category of metals. 

The other qualities of metal are good conductor of heat and electricity, lustrous, malleability, etc.