80Hg
Element 80
Mercury
Transition metals
Mercury is a chemical element with symbol Hg and atomic number 80.
Key data
- Atomic number
- 80
- Atomic mass
- 200.592 u
- Group / Period
- 12 / 6
- Block
- d-block
- Phase at STP
- Liquid
- Density
- 13.534 g/cm³
- Melting point
- -38.8 °C
- Boiling point
- 356.7 °C
- Electron configuration
- [Xe] 4f14 5d10 6s2
Common uses
- •Old thermometers
- •Fluorescent lamps
- •Gold extraction
Discovery
Year: Known since antiquity
Discovered by: unknown, before 2000 BCE
Frequently asked questions
What is the atomic number of Mercury?
Mercury has atomic number 80. Its symbol is Hg and its atomic mass is 200.592 u.
What category of element is Mercury?
Mercury is classified as transition metals. It sits in group 12, period 6 of the periodic table.
What is Mercury used for?
Common uses of Mercury include: Old thermometers, Fluorescent lamps, Gold extraction.
When was Mercury discovered?
Mercury has been known since antiquity.
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