Chem_102C_Worksheet_6_for_Wed._2-7_and_Fri_2-9_Periodic_Trends_and_Chemical_Bonding

Chem_102C_Worksheet_6_for_Wed._2-7_and_Fri_2-9_Periodic_Trends_and_Chemical_Bonding

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Periodic Trends and Chemical Bonding for Wed. 2/7 & Fri. 2/9 Spring 2012 In this worksheet you will work on problems to strengthen your knowledge on periodic trends (e.g. atomic radii, ionic sizes, IE, EA, EN, etc.), as well as reviewing the naming of ionic and covalent compounds. You should also familiarize yourself with rules of writing Lewis structure and be able to draw the correct Lewis structure when given the chemical formula, and use the VSEPR model to predict the 3-D molecular shape. 1. With reference only to a periodic table, arrange the following species in the expected order of increasing radius: Ca 2+ , K + , S 2- , Se 2- 2. Without consulting a table, which ion would have a larger ionization energy: B + or B 4+ ? Explain. 3. The formula given for each name is INCORRECT. Indicate the nature of the error(s) in the formula and give the correct formula for the compound: a. ammonium chlorate, NH 4 Cl b. potassium nitrate, KNO 2 c. sodium sulfate, NaSO 4
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Chem_102C_Worksheet_6_for_Wed._2-7_and_Fri_2-9_Periodic_Trends_and_Chemical_Bonding

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