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Noble Gases

Published on Oct 20, 2017

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1.

Noble Gases

A noble group of elements ;-)
Photo by Ignacio Conejo
2.

The nobles

Helium, neon, krypton, argon, xenon, radon
Photo by cobalt123
3.

info

  • They have a full outer shell of electrons
  • Their natural state is as a gass
  • Neon signs use a mixture of noble gases, not just neon
Photo by Vetto
4.

WHere are they?

  • Argon is used in lightbulbs
  • Helium is used in tires, weather balloons, and blimps
  • Krypton and Xenon are used in lighthouses because they give off a very bright light with the help of an electric current.
Photo by clagnut
5.

Helium

Photo by NASA Goddard Photo and Video
6.

Helium is colorless and textureless, as it is a gas

Photo by sdomission
7.

Helium

  • Atomic number:2
  • Atomic mass: 4.0
  • Nonmetal
  • Not dense at all, it is a gas
Photo by fdecomite
8.

Where is helium?

  • Balloons
  • The sun
  • Compressed air tanks
  • Rocket fuel
  • Lasers
Photo by Bon™
9.

Interesting facts

  • Helium is the 2nd most abundant element in the universe
  • At normal atmospheric pressure helium does not solidify
  • Helium is so light that the earth's gravity can not keep it from escaping into space
Photo by NASA's Marshall Space Flight Center
10.

History

  • Helium was discovered in 1895
  • The name originates from helios which is the greek word for sun
Photo by VinothChandar

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