<P> Liquid metal consists of alloys with very low melting points which form a eutectic that is liquid at room temperature . The standard metal used to be mercury, but gallium - based alloys, which are lower both in their vapor pressure at room temperature and toxicity, are being used as a replacement in various applications . </P> <P> Alloy systems that are liquid at room temperature have thermal conductivity far superior to ordinary non-metallic liquids, allowing liquid metal to efficiently transfer energy from the heat source to the liquid . They also have a higher electrical conductivity that allows the liquid to be pumped by more efficient, electromagnetic pumps . This results in the use of these materials for specific heat conducting and / or dissipation applications . </P>

What element is a metal but liquid at room temperature