What is the only metal that is a liquid at normal atmospheric pressure and temperature?
The only metal that is a liquid at normal atmospheric pressure and temperature is mercury (Hg).
Mercury is a silvery-white metal that is liquid at room temperature and has a very low boiling point of 356.7 °C (674 °F).
Due to its unique properties, mercury has been used in a variety of applications, including thermometers, barometers, and fluorescent lamps.
However, due to its toxicity, many countries have restricted or banned the use of mercury in certain products and industries.