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READER%202A%20%20EXERCISES%20%20for%20FINAL

READER%202A%20%20EXERCISES%20%20for%20FINAL - Copyright...

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Copyright 2010 TOUPADAKIS CHEMISTRY READER 2A ADDITIONAL EXERCISES FOR UNITS 7-9 1 ADDITIONAL EXERCISES FOR UNITS 7-9 CONCEPTS (Select the best answer) 1. Rank in order of increasing ionic radius the ions: P 3- , K + , Cl - . a. K + < Cl - < P 3- b. P 3- < Cl - < K + c. Cl - < K + < P 3- d. K + < P 3- < Cl - e. None of the above 2. How many electrons a Cr 3+ cation must lose to become diamagnetic? 3. What two elements have 3d 10 as part of their electron configuration? 4. Draw the Lewis electron dot diagram for CN ˉ and determine how many π bonds are between the carbon atom and nitrogen atom? 5. Which element is classified as metalloid or semimetal? a. oxygen b. carbon c. bromine d. germanium e. cesium
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Copyright 2010 TOUPADAKIS CHEMISTRY READER 2A ADDITIONAL EXERCISES FOR UNITS 7-9 2 6. The phosphate salt of a metal “M” has the chemical formula of M 3 (PO 4 ) 2 . The chemical formula of the nitride of the same metal M is: a. MN b. M 3 N 3 c. M 2 N 2 d. M 3 N 2 e. M 2 N 3
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