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2012-06-19

Density of Noble Gases



After watching video, can you answer the following questions:

  1. Name all noble gases. 
  2. State one physical property of noble gases mentioned in this video. 
  3. How does this physical property change when going down Group 18? 
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2 comments:

  1. Shazwani AnhaJuly 16, 2012 at 12:26 PM

    1)1-helium
    2-neon
    3-argon
    4-krypton
    5-zenon
    2)colouless n transparent
    3)As the atomic number decrease, the gas get denser.

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  2. Swee MoiJuly 17, 2012 at 3:11 PM

    The names of Noble gases are given correctly except xenon.
    Physical property mentioned: density
    Density of noble gases increase when going down the group!

    ReplyDelete