Lect5 Minerals (09-08-09)

Lect5 Minerals (09-08-09) - Today I will give an...

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Today I will give an introduction to minerals. If you don’t understand something, or I am going too fast….ask a question, ask me to slow down, ask me to clarify.
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HW due next TUESDAY Sept. 15 (Remember Exam on Thurs Sept. 17) Chapter by Binzel. in Asteroids III (Part II chap 16. NEA properties.) You only need to understand and outline 3 parts of this chapter : abstract, section 1(Introduction) and section 4 (Conclusions and Future Work)
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OUTLINE I. Definition II. Chemical Reactions and Bonds III. Periodic Table IV. Structure and Ionic Sizes V. Elemental Abundances VI. Characteristics of Most Relevant Minerals: Silicates, etc. VII. Major Rock Types
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I. A Mineral is… Naturally occurring Solid crystalline substance. With a definite chemical composition and crystal structure Generally inorganic
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II. Chemical Reactions atoms that gain or lose an electron are called “Ions” Cations are positively charged ions (they have lost an electron) Anions are negatively charged ions (they have gained an electron)
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Bonds Ionic bonds are formed by opposite charged ions attracting because they have swapped electrons. The most common bond, essentially the same as we experience with static electricity. Covalent bonds are based on sharing electrons. The strongest type of bond. Metallic bonds are when metals are packed together and lose their outer shell electrons. The electrons are “shared and dispersed” among the ions and essentially freely float around the mineral. Remember: All these reactions MUST end in an electrically
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Lect5 Minerals (09-08-09) - Today I will give an...

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