In fact, all late 19th- and early 20th-century efforts to prepare chemical compounds of argon failed.
Scientists were unable to prepare compounds of argon until the end of the 20th century, but these attempts helped to develop new theories of atomic structure.
Although the neutral ground-state chemical compounds of argon are presently limited to HArF, argon can form clathrates with water when atoms of it are trapped in a lattice of the water molecules.
Similar conditions were used to obtain the first few compounds of argon in 2000, such as argon fluorohydride (HArF), and some bound to the late transition metals copper, silver, and gold.
The experiment is an "excellent achievement," says chemist Gernot Frenking of the University of Marburg in Germany, one of the theorists who made calculations predicting the existence of argon compounds.
Combined implantation of TiB2 compound and Argon or Nitrogen were applied for surface properties modification of WC Co hard alloy and SKD11 steel.
The solubility behaviours of argon and oxygen are quite similar.
For example, solid argon melts at approximately 80 K, while small clusters of argon become liquid at about 40 K.
"A wimp passing through these two forms of argon will produce a flash of light if it strikes an atom in the liquid phase and cause electrons to be emitted from the argon in the gaseous state.
