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Posted by on Thursday, May 17, 2012 at 3:11pm.

why were the noble gases considered to be inert gases until the 1960s?

  • honors chemistry - , Thursday, May 17, 2012 at 3:50pm

    They didn't react with anything to form compounds.

  • honors chemistry - , Thursday, May 17, 2012 at 4:01pm

    Their oxidation number of 0 prevents the noble gases from forming compounds readily. All noble gases have the maximum number of electrons possible in their outer shell (2 for Helium, 8 for all others), making them stable.

  • honors chemistry - , Thursday, May 17, 2012 at 4:32pm

    Explain what the term "halogen" means and why they have this name, and which halogens exist as a solid, a liquid, and a gas at room temperature.

  • honors chemistry - , Thursday, May 17, 2012 at 4:34pm

    The term "halogen" means "salt-former" and compounds containing halogens are called "salts". All halogens have 7 electrons in their outer shells, giving them an oxidation number of -1. The halogens exist, at room temperature, in all three states of matter: Solid- Iodine, Astatine. Liquid- Bromine. Gas- Fluorine, Chlorine.

  • honors chemistry - , Thursday, May 17, 2012 at 4:44pm

    thanks

  • honors chemistry - , Thursday, May 17, 2012 at 4:55pm

    SWS fan?

  • honors chemistry - , Thursday, May 17, 2012 at 4:57pm

    yes!

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