Mercury belongs to the group of elements called transition metals, and it is placed in the d-block in the periodic table of elements. Mercury is in group 12 and period 6.
The symbol for mercury is Hg, which is derived from its Latin name Hydrargyrum. Mercury is also referred to as "quicksilver." The atomic number of mercury is 80, and its atomic weight is 200.59 atomic mass units. The electron configuration of mercury is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 or 2, 8, 18, 32, 18 and 2 electrons per shell.
Mercury is the only metal that is liquid at room temperature. It has a density of 13.53 grams per centimeter cubed.