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Questions in Periodic Table tagged with "chemistry"

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  What is tripple distilled mercury used for and where?

  Posted by nkobi on Nov 17, 2009 at 12:41 AM

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  Why do you think mercury is a metal and bromine a non-metal?

  Posted by peshol on May 24, 2009 at 08:54 AM

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  What are the chemical and physical properties of xenon, and the history regarding the discovery?

  Posted by jahnea on Mar 30, 2009 at 04:07 PM

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  What are isotopes? Please explain clearly and in detail.

  Posted by dardasa on Jan 17, 2009 at 03:41 PM

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  Why does the element Iron have a variable valency, sometimes Fe+2 and sometimes Fe+3?

  Posted by faro62 on Dec 13, 2008 at 01:19 PM

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  Compare the properties of hardness, melting point, and density among the alkali metals, alkaline earth metals, transition metals, and non-metals.

  Posted by fulla on Dec 9, 2008 at 02:50 PM