Answer:
Mercury is an atomic number 80 chemical element with the symbol Hg. Quicksilver is a frequent name for it. Mercury is the only metallic element known to be liquid at ordinary temperature and pressure; it is a hefty, silvery d-block element.
It belongs to the halogen family. It’s a liquid that’s heavy, volatile, mobile, and dangerous. At room temperature, it’s a reddish-brown liquid that evaporates quickly to generate a similarly coloured gas.