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Unformatted text preview: 2 , CO & CO 2 ) Structure of Atoms shaped like sphere, nucleus, electrons, protons, neutrons Isotopes elements can have a different mass but have the same chemical properties Mass number number of protons and neutrons (upper left) Atomic Number weighted average of isotopes (M 1 A 1 + M 2 A 2 ) 6 Li 6.0151 amu 7.52% 7 Li 7.0160 amu 92.48% Compound elements that combine to form a substance with different properties described by chemical equation\ Mixture two substances that are not mixed together Heterogeneous not uniform, bucket of legos, beef stew Homogenous uniform, salt and water, sugar and water...
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This note was uploaded on 04/07/2008 for the course CHEM 201 taught by Professor Harris during the Fall '07 term at Bucknell.
- Fall '07