Ag

Silver

Identification

CAS Number: 7440-22-4

Discoverer: Known to the ancients.

Properties

Atomic Mass: 107.8682 →Density: 10.5 g/cm³ →

Crust Abundance: 0.075 mg/kg

Crystal Structure: FCC

Atomic Dimensions

Atomic Radius: 160 pm →

Atomic Radius (Rahm): 225 pm

Covalent Radius: 145 pm →

Van der Waals Radius: 211 pm

Metallic Radius: 134 pm

Atomic Volume: 10.3 cm³/mol

Lattice Constant: 4.09 Å

Thermodynamics

Melting Point: 1235.1 K →Boiling Point: 2485 K →Specific Heat: 0.237 J/(g·K) →Thermal Conductivity: 429 W/(m·K) →Heat of Fusion: 11.95 kJ/mol →Heat of Vaporization: 254.1 kJ/mol →

Heat of Formation: 284.9 kJ/mol

Electronic Structure

Electron Config: [Kr] 4d10 5s

Block: d

Period: 5 →Group: 11 →Electronegativity: 1.93 →Electron Affinity: 1.3019999999999998 eV →

Oxidation States: +1, +2

Abundance & Geochemistry

Crust Abundance: 0.075 mg/kg

Sea Abundance: 0.00004 mg/L

Goldschmidt Class: chalcophile

About

Silver is a lustrous white metal with the highest electrical and thermal conductivity of any element. It is used in jewelry, electronics, and photography.

Isotopes

Ag-107 107 51.84%

Ag-109 109 48.16%