Chemistry Unit 1 - Intro

Chemistry Unit 1 - Intro -...

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Reading: D&M Chapter 2: pp. 32-56, 64-69, 78-80 Periodic Table - an amazing discovery by Mendelev! The Basics:       Z , atomic number  = # of protons (fixed!)      mass number  = # of protons + # of neutrons (varies => isotopes)      in a neutral atom, # of protons = # of electrons                   atomic mass  = average atomic mass The Discovery:       If elements are ordered by atomic mass, there are striking      trends in behavior and reactivity Chemistry Unit 1:  Basic Chemistry Review U 238 92
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Basic Chemistry Review –  Periodic Table 1A 8A 3B 4B 5B 6B 7B 8B 8B 8B 1B 2B 2A 3A 4A 5A 6A 7A
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Observations on Periodic Table Main Groups (i.e., IA, IIA … VIIIA) have similar behavior                IA      -   Alkali Metals                IIA     -   Alkaline Earth Metals                VIIA  -   Halogens                VIIIA -   Noble gases Vertical Columns Horizontal Rows Periods display similar trends in elemental properties
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This note was uploaded on 06/03/2011 for the course 53 50 taught by Professor Parkin during the Spring '11 term at University of Iowa.

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Chemistry Unit 1 - Intro -...

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