Hg
Mercury · element 80
Transition Metal · Liquid at room temperature
Mercury is a chemical element with symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum (/haɪˈdrɑːrdʒərəm/). A heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure; the only other element that is liquid under these conditions is bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature.
Key facts
Atomic mass
200.5923 u
how heavy one atom is
Phase (room temp.)
Liquid
Density
13.534 g/cm³
how tightly packed it is
Melting point
234.321 K (-39 °C)
when solid turns to liquid
Boiling point
629.88 K (357 °C)
when liquid turns to gas
Period
6
its row in the periodic table
Group
12
its column in the periodic table
Block
D-block
the neighbourhood it lives in
Electronegativity
2
how strongly it pulls electrons
Electron configuration
[Xe] 4f14 5d10 6s2
where its electrons live
Shells
2 · 8 · 18 · 32 · 18 · 2
electrons in each layer, inside to out
Discovered by
unknown, before 2000 BCE
who found it
Appearance
silvery
what it looks like
Source: Wikipedia