Periodex

General properties

Group

group 12

Period

period 6

Category

transition metals

Standard atomic weight

200.592(3)

Melting point

234.3210 K (-38.8290 °C)

Boiling point

629.88 K (356.73 °C)

Phase at STP

liquid

Additional properties

Block

d-block

Electron configuration

[Xe] 4f¹⁴ 5d¹⁰ 6s²

Electrons per shell

2, 8, 18, 32, 18, 2

Electronegativity

2.00

Density

13.534 g/cm³

Oxidation states

−2, +1, +2

CAS Number

7439-97-6

Natural isotopes

Discovery history

Discovered by

ancient civilizations

Year of discovery

before 1500 BCE

Origin of name

Mercury, the first planet in the Solar System (Hg from former name hydrargyrum, from Greek hydr- water and argyros silver)