Thursday, May 13, 2010

Chemistry atoms: Basic Ideas.

1-All matter is made up of very small, discrete particles called atoms.
2-All atoms of an electron are alike in weight and different from the weight of any other kind of atom.
3-Atoms unite in chemical changes to form compounds.The atom loss its characteristic properties when this combination occurs.
4-The atom is not entirely altered in the formation of a compound, and its weight remains constant.

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