argon

     

Argon (pronounce /ˈɑrgɒn/) is a chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic table (noble gases). Argon is present in the Earth's atmosphere at 0.93%, making it the most abundant noble gas on Earth. Its full outer shell makes argon stable and resistant to bonding with other elements. Its triple point temperature of 83.8058 K is a defining fixed point in the International Temperature Scale of 1990.

Trivia about argon

  • Alphabetically, it's the first of the noble gases
  • Air consists of 78% nitrogen, 21% oxygen & about 1% this noble gas
  • Symbolized Ar, this noble gas is used to fill most household light bulbs
  • Of the noble gases, it's first, alphabetically, was the first discovered & is the most abundant in air
  • This inert gas symbolized Ar is used to fill light bulbs to prevent the tungsten filament from evaporating
  • The same 2 letters in the same order make up Arkansas' postal abbreviation & the symbol of this chemical element
  • The atomic weight of this element used to fill vacuum tubes be 39.948; remember the gist o' the category, ye scurvy scalawags!
  • The most common of the noble gasses, it's used to fill electric light bulbs
  • This inert gas is atomic number 18; you should "naut" search any further
  • Shiver me timbers /Jason's ship be in its name /Scurvy noble gas
  • Lord Rayleigh & Sir William Ramsey discovered this noble gas in 1894; it forms .94% of the Earth's atmosphere
  • Recently, the noble gases have been forced into compounds, like this one in HArF, created in 2000

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