the physical properties which we have determined are the refractivities, the densities and the compressibilities at two temperatures, and of argon, krypton, and xenon the vapor-pressures and the ...
Argon is an inert gas in group VIII A of the periodic table with atomic number 18, an atomic weight of 39.948, and a density of 1.40 Mg/m 3. In the solid state it forms an fcc crystal with a melting ...
Argon, krypton and xenon are very unreactive. They replace the air inside the lamp, preventing the metal wire burning away.
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