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CH101Notes on General Chemistry, 2e- chap 2

CH101Notes on General Chemistry, 2e- chap 2 - ii...

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Chapter 2.1: Road map of quantum aspects of general chemistry I. Structure of Atoms a. Electron clouds i. Inner core region ii. Outer valence region iii. Concentric shell-like structure (leads to periodicity of chemical properties iv. Described by quantum waves of potentiality b. Electron waves i. Indgredients of recipies of how electron clouds interact with one another and light. II. Stickiness of atoms: bonding a. Atoms combine by shaqring electrons through merging of electron clouds b. More equal the sharing less polar (ionic), more covalent bond. c. Less equal the sharing more polar (ionic), less covalent bond d. Electron waves on separate atoms interact to form new molecular electron waves.
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i. Bonding wave- form a wave concentrated b/t the atoms
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Unformatted text preview: ii. Antibonding wave- form a wave split to the far sides of each atom iii. Non-bonding wave- exactly cancel on another. III. Seeing electrons, atoms, and molecules: Spectroscopy a. B/C atoms are so small, primary tool is way they interact with light. b. Frequencies of the jiggling must = frequencies of light c. Spectroscopy- woking from the frequencies of jiggling to the structure of the atom. d. UV and higher frequencies electron waves jiggle. e. Light interacts with molecules by causing their electrons to jiggle. f. Atoms can also jiggle as a group g. Vibrational jiggling IR frequencies h. Rotational jiggling microwave frequencies....
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