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Noble Gases (18): (Name all noble gases)

• These elements do not easily combine with other elements. They are odorless, colorless and therefore were difficult to discover.

• When air is cold, Oxygen liquefies first at -18O Celsius. about 1% of the air is still gas composed of the noble gas __(Name entire noble gas name)____, ___(Name short version of Noble gas name)___.

• One noble gas was discovered on the sun. It’s spectrum was identify first. This is _____, __.

• One of noble gas is radioactive and seeps up your basement floors and walls. It is _____, __.

• This noble gas is used in electronic flashes and other bright lights. It is ____, __.

• This noble gas is best known for its orange color in gas discharge tubes. It is used for signs that bear its name. It is ____, __.

Noble Gases 18 Name all noble gases These elements do not easily combine with other elements They are odorless colorless and therefore were difficult to discove class=

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Answer :

  • The Noble gasses are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn).
  • When air is cold, Oxygen liquefies first at [tex]-182^oC[/tex]. [tex]N_2[/tex] liquefies at [tex]-195^oC[/tex]. About 1% of the air is still gas composed of the noble gas Argon, Ar.
  • One noble gas was discovered on the sun. It’s spectrum was identify first. This is Helium, He.
  • One of noble gas is radioactive and seeps up your basement floors and walls. It is Radon, Rn.
  • This noble gas is used in electronic flashes and other bright lights. It is Xenon, Xe.
  • This noble gas is best known for its orange color in gas discharge tubes. It is used for signs that bear its name. It is Neon, Ne.

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