Topic_9____Lithosphere_I

Topic_9____Lithosphere_I - Lithosphere I - The Building...

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Lithosphere I - The Building Blocks I. The basic building blocks A. Atoms - the smallest indivisible particles of matter 1. Composed of Protons (+), Neutrons (0), and Electrons (-) 2. Defined by the number of protons in the nucleus 3. Elements: substances made up of only one kind of atom 4. Elements are arranged based on the number of protons in the Periodic Table of the Elements 5. Isotopes are elements that differ in the number of neutrons 6. Radioactive isotopes decay at a constant rate until they reach a stable form (e.g. Uranium) B. Atoms form Molecules through filling of electron shells (2, 8, or 18 electrons is optimal) 1. Ionic bonding: loss/gain of electrons creates charge imbalance; attraction of +/- nuclei 2. Covalent bonding: mutual sharing of electrons C. Compounds – substance whose molecules contain more than one type of atom D. Minerals – naturally occurring inorganic compounds or elemental substances with repeating structure 1. Mostly crystalline or showing a repetitive, fixed, geometric
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This note was uploaded on 09/02/2009 for the course GEO 302C taught by Professor Yang during the Spring '08 term at University of Texas at Austin.

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Topic_9____Lithosphere_I - Lithosphere I - The Building...

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