Gold Thallium

Mercury (Hg)

From Wikipedia, the free encyclopediaMercury 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.

Mercury in the periodic table

Symbol

Atomic number

Group

Period

Block

Element category

Transition Metal

Physical properties

Phase at STP

Liquid

Density

13.534 g/cm³

Atomic weight

200.592 u

Melting point

234.321 K
-38.829 °C
-37.8922 °F

Boiling point

629.88 K
356.73 °C
674.114 °F

Atomic properties

Electronegativity (Pauling Scale)

Electron affinity

-48 kJ/mol

Oxidation states

−2 , +1, +2
(a mildly basic oxide)

Ionization energies

1	1007.1 kJ/mol
2	1810 kJ/mol
3	3300 kJ/mol

Electron configuration

Elektronkonfiguration (shorthand)

[Xe] 4f¹⁴ 5d¹⁰ 6s²

Electron configuration

1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s²

Electrons per shell

2, 8, 18, 32, 18, 2

History

Discovered

-1500

Discovered by

Egyptians