Noble Gases

By: Ellie Allen

What are Noble Gases?

The noble gases are found in group eighteen on the periodic table. The elements were considered to be inert gases until the 1960s because they cannot form compounds because there outer energy level is full. This makes them stable.

Uses for Noble Gases and Where They Are Found


Krypton was found in 1898 by Sir William Ramsay and Morris Travers. Krypton is found in Earth's atmosphere. Unlike most of the noble gases it is reactive enough to form some compounds. Krypton is used in energy saving lights, flash lamps used in high-speed photography. Krypton fluoride is used in some lasers.


Xenon was found by Sir William Ramsay and Morris Travers in 1898. Xenon is present in Earth's atmosphere. Xenon is used in specialized light sources, high-speed electronic flash bulbs, sunbed lamps, bactericidal lamps used in food preparation and processing, and Xenon lamps are used in ruby lasers. Xenon ion propulsion systems are used by satellites to keep them in orbit. Xenon difluoride is used to etch silicon microprocessors. It is also used in a drug that is used to treat cancer.


Radon was found by Fredrich Dorn in 1900. Radon is radioactive. It is used in hospitals for cancer treatment. Safer methods are user now. Radon occurs in radioactive gas and from the natural breakdown of uranium. It can be found in igneous rock, soil, and even well water.