mercury (Hg), chemical element, liquid metal of Group 12 (IIb, or zinc group) of the periodic table. Mercury is a naturally-occurring chemical element found in rock in the earth's crust, including in deposits of coal. On the periodic table, it has the symbol Hg and its atomic number is 80. It exists in several forms: The Hunger Games is a series of young adult dystopian novels written by American author Suzanne Collins. The series consists of a trilogy that follows teenage protagonist Katniss Everdeen, as well as two prequels. Over 25 years – through successive waves of technology change – we’ve become leading experts in investing and supporting businesses transforming workplace automation and professional productivity. A snapshot of AI-driven value creation across our portfolio of 60+ companies. Chemical element, Mercury, information from authoritative sources. Look up properties, history, uses, and more. Ready to reimagine your space and turn it into a true reflection of your personal style? Enter twice daily – once on HGTV.com and once on TLC.com – for your chance to win $5,000 to make it happen. The ‘Castle Impossible’ Fairy Tale Has a New Chapter: A Baby! Mercury is a chemical element; it has symbol Hg and atomic number 80. It is commonly known as quicksilver. A heavy, silvery d-block element, mercury is the only metallic element that is known to be liquid at standard temperature and pressure. Do you know which element has the symbol Hg ? 🧪 Watch to learn about mercury and its unique properties!.more Its symbol on the periodic table is Hg, and its atomic number is 80. Its atomic mass is 200.59. The symbol Hg stands for its Latinized Greek name hydrargyrum, meaning watery or liquid silver. No one has the credit for finding mercury. It was known in ancient times. Mercury was found in Egyptian tombs that are from 1500 BC. [2] Element Mercury (Hg), Group 12, Atomic Number 80, d-block, Mass 200.592. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.