The Elements Table

The Interactive Periodic Table of Elements

  • 18 Ar Argon 39.948
  • 18 Ar Argon 39.948
  • 18 Ar Argon 39.948
  • Vital Element Stats

  • Name: Argon
  • Symbol: Ar
  • Weight: 39.948
  • Family: Noble Gases
  • Group: 18
  • Period: 87.45
  • Composition

  • Electrons: 18
  • Protons: 18
  • Neutrons: ~22
  • Measurements

  • Density: 1.78 g/mL
  • Miscellaneous Facts

  • Discovered: 1900
  • Melting Point: 83.95 o C , 183.11 o F , 357.1 o Kelvin
  • Boiling Point: 87.45 o C , 189.41 o F , 360.6 o Kelvin
  • Cost: N/A