At room temperature, the two elements that are in liquid form are bromine and mercury.
Bromine (Br) is a reddish-brown liquid that is part of the halogen group in the periodic table. It has a relatively low melting point of about -7.2 degrees Celsius (19 degrees Fahrenheit), which allows it to remain liquid at room temperature. It is known for its strong smell and is used in various chemical applications.
Mercury (Hg), on the other hand, is a silvery-white metal that is unique for its liquid state at room temperature. It has a melting point of -38.83 degrees Celsius (-37.89 degrees Fahrenheit). Mercury has been historically used in thermometers, barometers, and other scientific instruments. However, its toxicity has led to a decline in its use in recent years.
In summary, bromine and mercury are the only two elements that can be found in liquid form at room temperature, each with unique properties and applications.