Lacey_Che131_S2012_Lect-3s

Lacey_Che131_S2012_Lect-3s - Lec-3 Atomic Theory Roy A...

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Lec-3: Atomic Theory Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 1 Atomic Theory The electrons are situated at comparatively large distances (compared to nuclear dimensions) (compared to nuclear dimensions) around the nucleus The fundamental structural blocks of substances are the t Elements Compounds Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 2 atoms
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Periodic table alkali metals (group 1) Alkaline earth metals (group 2) Halogens (group 17) Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 3 Periodic table The modern periodic table is based on a classification of elements in terms of their physical and chemical properties physical and chemical properties. The horizontal rows are called periods. Columns contain elements of the same family or group. Transition metals are the elements in group 3 through 12 in the periodic table through 12 in the periodic table. Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 4
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