Chemistry Lecture Notes - August 30, 2006

Chemistry Lecture Notes - August 30, 2006 - August 30, 2006...

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August 30, 2006 Chemistry Lecture Notes Polyatomic ions – memorize Naming compounds Dalton’s Atomic Theory – first developed by Dalton Dalton’s work marked the beginning of modern chemistry and has four statements. o Elements are composed of small particles called atoms. Atom means indivisible – cannot be broken down into anything smaller o All atoms of a given element are identical. The atoms of one element are different from all other elements. o Compounds are composed of atoms of more than one element. o A chemical reaction involves only the separation, combination, or rearrangement of atoms; it does not result in their creation or destruction. The structure of the atom Atoms were discovered to not be indivisible but to exist of subatomic particles Electron, proton, neutron How were they discovered? The electron o Cathode ray tube o o When the magnetic, electrical fields were applied, different movements of the beam o Showed that electrons had electrical and magnetic properties Experiment shows that: o There exists particles (because something is hitting the plate)
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This note was uploaded on 04/20/2008 for the course CHE 105 taught by Professor Woodrum during the Fall '06 term at Kentucky.

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Chemistry Lecture Notes - August 30, 2006 - August 30, 2006...

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