moleculescompoundsprobs

moleculescompoundsprobs - S olomon’s Study Notes General...

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Unformatted text preview: S olomon’s Study Notes General Chemistry I Fall 2011 Solomon Weiskop PhD Practice Problems: Molecules & Compounds General Chemistry 1 Study Notes & Practice Problems are available to print out by registering at www.solomonlinetutor.com Solomon Weiskop PhD © Copyright 2011 1 [#1] Which one of the following is not correct? (a) An atom in Group 1 like sodium usually forms an ion with a +1 charge (b) An atom in Group 2 like barium usually forms an ion with a +2 charge (c) A halogen like chlorine usually forms an ion with a -1 charge (d) The metallic character of elements decreases as one goes diagonally from the lower left corner to the upper right corner of the periodic table (e) Covalent bonds are formed between atoms widely separated horizontally on the Periodic Table. [#2] Which one of the following elements is an alkali metal? (a) oxygen, atomic number 8 (b) helium, atomic number 2 (c) fluorine, atomic number 9 (d) zinc, atomic number 30 (e) sodium, atomic number 11 [#3] Which of the following best describes a property of metals? (a) They exist naturally in the solid liquid and gas phases (b) They are not good conductors of heat (c) They are not ductile (d) They have low densities compared to nonmetals (e) Elements with the most metallic character are located on the left side of the periodic table [#4] Which element has the most similar chemical properties to Se ? (a) As (b) Br (c) P (d) S [#5] Which of the following substances are alkaline earth halides?...
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moleculescompoundsprobs - S olomon’s Study Notes General...

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