Name one metal and one non-metal that exist in liquid state at room temperature. Also name two metals having melting point less than 310 K (37°C)
Ans.
The only metal that exists as a liquid at room temperature is mercury (Hg).
Non-metal which exists in liquid state at room temperature is bromine (Br).
Two metals having melting point less than 310 K (37°C) are caesium (Cs) with melting point 28.5°C and gallium (Ga) with melting point 30°C