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 ...

Characterization of surface effects, crystal size and grain formation was ... film quenched with helium gas followed by nitrogen and argon gases, respectively,” noted the scientists.