• The Noble Gases
The noble gases are located in the 13th group or in the last column of the periodic table. The group is consists with the elements helium, neon, argon, krypton, xenon, and radon. The electron shell of each element of noble gases are completely filled, causing these elements to be the most stable elements with the lowest tendencies of having, losing, and sharing electrons in chemical bonds. Noble gases are odorless, colorless, tasteless, and non-flammable and have low chemical reactivity.

• History of Noble Gases
Henry Cavendish, English chemist and physicist, is the one who discovered the noble gases in the late 18th century. The elements were extracted from a container of air by chemically removing all of the oxygen and nitrogen present in the container. The second person who isolated the said group of elements is William Francis; he also noted how the gases are formed while uranium is being dissolved with acid.

• Abundance of Noble Gases
Elements classified as one of the noble gases are one of the most abundant elements in the universe; hydrogen being the second most abundant element in the universe, neon as the fifth, and argon as the eleventh. However, on the earth’s atmosphere, we may find these noble gases rare except for argon which is the third most abundant gas in the earth’s atmosphere (less than one percent).

• Mixture of Info
Helium is the gas used for party balloons in order for it to float. Neon light tubes can emit different colors of light depends on the mixture of elements inside it. Krypton produces white light flashes for photography.
Below are the elements which under the noble gases:

• Neon (Ne)
Neon was discovered by English chemists William Ramsay and Morris Tamers in 1898. The name neon was derived from the Greek word neos which means “new”. Neon lights are the main application of neon wherein a tube with pure neon can emit bright orange-red color.

• Helium (He)
Helium is the second most abundant element in the universe next only to hydrogen. This element was discovered during the study of the sun’s chromospheres during a solar eclipse by the French astronomer P.J.C. Jenssen. It was named after Helios, the Greek word for sun.

• Argon (Ar)
Argon was first discovered by Henry Cavendish in 1785 and was isolated by William Ramsay and John Rayleigh in 1894. The name was derived from the Greek word argos which means inactive. Argon made up the 0.934% of the earth’s atmosphere making it the third most abundant gas in our atmosphere next to nitrogen with 78% and oxygen with 21%.

• Krypton (Kr)
Krypton was also discovered and isolated from the same men behind the discovery of argon in1785. The name Krypton came from the Greek word kyrptos which means “hidden”. Krypton is ranked six for the most abundant gases in the atmosphere. Krypton can be in various kinds of lights, from small bulbs to special strobe lights.

• Radon (Rn)
Radon was discovered in 1900 by Friedrich Dorn. The original name for radon is niton which means “shining”. Radon can be mainly found underground from decaying uranium and radium. Large exposure of radon causes lung cancer and radiation that damages human DNA.

• Xenon (Xe)
Also discovered by William Ramsay and Morris Tamers along with Krypton and Neon, Xenon is commonly used for light bulbs and as a general anesthetic. Lights made up from xenon are usually more stable and brighter than regular light bulbs. Xenon has nine natural isotopes and has the second most stable ones next to tin.