Hg

Mercury

Identification

CAS Number: 7439-97-6

Discoverer: Known to the ancients.

Properties

Atomic Mass: 200.592 →Density: 13.5336 g/cm³ →

Crust Abundance: 0.085 mg/kg

Crystal Structure: RHL

Atomic Dimensions

Atomic Radius: 150 pm →

Atomic Radius (Rahm): 229 pm

Covalent Radius: 132 pm →

Van der Waals Radius: 223 pm

Metallic Radius: 139 pm

Atomic Volume: 14.8 cm³/mol

Lattice Constant: 2.99 Å

Thermodynamics

Melting Point: 234.28 K →Boiling Point: 629.73 K →Specific Heat: 0.138 J/(g·K) →Thermal Conductivity: 8.3 W/(m·K) →Heat of Fusion: 2.295 kJ/mol →Heat of Vaporization: 58.5 kJ/mol →

Heat of Formation: 61.38 kJ/mol

Electronic Structure

Electron Config: [Xe] 4f14 5d10 6s2

Block: d

Period: 6 →Group: 12 →Electronegativity: 1.9 →

Oxidation States: +1, +2

Abundance & Geochemistry

Crust Abundance: 0.085 mg/kg

Sea Abundance: 0.000029999999999999997 mg/L

Goldschmidt Class: chalcophile

About

Heavy silvery liquid metallic element, belongs to the zinc group. Used in thermometers, barometers and other scientific apparatus. Less reactive than zinc and cadmium, does not displace hydrogen from acids. Forms a number of complexes and organomercury compounds.

Isotopes

Hg-202 202 29.74%

Hg-200 200 23.14%

Hg-199 199 16.94%

Hg-201 201 13.17%

Hg-198 198 10.04%

Hg-204 204 6.82%

Hg-196 196 0.1500%