Krypton is an inert element found in trace amounts in the atmosphere. It is a member of group 18 (noble gases) of the periodic table.

The chemical properties of krypton are determined by its oxidation number, or atomic configuration. It is a close-packed hexagonal molecule.

It is a very heavy element, three times heavier than air. It is also a rare gas. It was discovered in 1898 by British chemists William Ramsay and Morris Travers.

Unlike other elements, krypton has no diatomic molecule and is bonded to other molecules by weak intermolecular bonds that are much more effective than the covalent bonding between atoms.

This is the main reason why krypton does not form many compounds.

As a result, it is not used as a source of energy. It does, however, make a useful calorimeter for experimental particle physics.

Hardness is the ability of a material to withstand loads that tend to cause it to stretch or break. It can be measured using a Vickers or Knoop microhardness test, on transverse sections of materials.

Krypton is a good choice for applications where the material will need to be hardened and protected against corrosion. Zoom Corrosion Technology has partnered with Krypton Chemicals to offer a wide range of liquid application products that provide high performance solutions for industrial needs.

The growth morphology and krypton content of chromium coatings produced in a dc-triode sputtering system were examined by X-ray diffraction, optical metallography, scanning electron microscopy of fracture and growth surfaces, and X-ray energy spectroscopy. The deposition rate, substrate temperature and potential influenced the growth morphology of the chromium, but did not significantly affect the krypton content or lattice parameter of the coatings.