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silver
Image: Wikimedia Commons

silver

Chemical element with symbol Ag and atomic number 47

Chemical elementchemical elementcombustible powderchalcophile elementQ1090

Also known as element 47

Symbol
Atomic number
  • 47
Mass
Melting point
  • 1,761°F
Boiling point
  • 3,632°F
  • , 961.78°C
Density
  • 10.49 g/cm³
Discovered
  • 5th millennium BCE

Overview

All data

234 statements · 18% with external sources · numbers in brackets are citations

Subclass of
NIOSH Pocket Guide ID
  • 0557
Has effect
Immediately dangerous to life or health
  • 10 milligram per cubic metre
Vapor pressure
  • 0 millimetre of mercury temperature: 68°F
Time-weighted average exposure limit
  • 0.01 milligram per cubic metre applies to jurisdiction: United States · runtime: 10 h
Electronegativity
  • 2
Permanent duplicated item
Formula
Canonical SMILES
Color
Standard molar entropy
Electrical conductivity
Unicode character
Part of
Different from
Show 9 more
Has use
Named after
  • white applies to name of subject: argentum
Ionic radius
  • 100 picometre charge number: 1 · coordination number: 4
  • 115 picometre charge number: 1 · coordination number: 6
  • 128 picometre charge number: 1 · coordination number: 8
  • 79 picometre charge number: 2 · coordination number: 4
  • 94 picometre charge number: 2 · coordination number: 6
  • 75 picometre charge number: 3 · coordination number: 6
Associated hazard
Made from material
Space group
Crystal system
Bulk modulus
  • 88.4B Pa
Shear modulus
  • 32.1B Pa
Poisson's ratio
  • 0.338
Thermal conductivity
  • 430 watt per metre kelvin
Specific heat capacity
  • 235 joule per kilogram kelvin
Speed of sound
  • 2,600 m/s
Electrical resistivity
  • 1.587e-8 ohm metre
Point group
Standard enthalpy of formation
  • 284.9 kilojoule per mole state of matter: gas
Has characteristic
Mohs' hardness
  • 2.5
Linear thermal expansion coefficient
  • 18.92 micrometre per metre kelvin temperature: 20°C
Ionization energy
Electron configuration
Oxidation state
  • 1
  • -2
  • -1
  • 0
  • 2
  • 3
Atomic radius
  • 160 picometre
Covalent radius
  • 145 picometre

On other databases

125 identifiers linking silver across the web's reference databases