<em><u>The two liquid elements at room temperature are mercury (symbol Hg and atomic number 80) and bromine (symbol Br and atomic number 35). Mercury is the only metal that is a liquid at room temperature.</u></em><em><u> </u></em>
Nearly all life on Earth gets its energy from the sun, and the sun gets its energy through the process of nuclear fusion, which is why these type of energy is important to life on Earth.