Ungh! Chem! Yuck! As an Electrical Eng, I though I was done with Chem after fresh year, only to be sideswiped Sr year with Integrated Circuits ... all chem. And you can't really separate Chem and Physics, they relate to each other too much. That said, as I remember things Willow has it right. That is for a steady state atom though (confused yet?). It gets insane for varying thermo levels. Ignore the rest of us .... follow Willow .... [img]smile.gif[/img]
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[url]\"http://www.duryea.org/pinky/gurkin.wav\" target=\"_blank\">AYPWIP?</a> .... <img border=\"0\" alt=\"[1ponder]\" title=\"\" src=\"graemlins/1ponder.gif\" /> <br />\"I think so Brain, but isn\'t a cucumber that small called a gherkin?\"<br />  <br />Shut UP! Pinky!
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