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eng-fall07-q8059x09d

eng-fall07-q8059x09d - CHEM 2045C Quiz 9(15 Nov 07 Show...

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CHEM 2045C: Quiz 9 (15 Nov 07) NAME ___________________________ N #_____________ Show your work for full credit Eng Q8059x09 Continued 30 points may be earned on this quiz. NO CALCULATORS ARE ALLOWED. 1. (3 pts) For Rb, K, Ge, C, and F identify the element with the a. largest nonbonding atomic radius _______________________________ b. largest 1 st ionization energy _______________________________ c. smallest (absolute value of) electron affinity _______________________________ 2. (3 pts) Name the following groups. Group IA (or 1) _____________________ Group VIA (or 16) _____________________ Group IIA (or 2) _____________________ Group VIIA (or 17) _____________________ Group VA (or 15)_____________________ Group VIIIA (or 18) _____________________ 3. (1 pt) Of Mg and Ba, which element will react with cold water, H 2 O (l) ? _____________________ 4. (4 pts) Give two examples of allotropes for the following elements. carbon (2 names) _____________________ oxygen (2 chemical formulae) ____________________ phosphorus (2 names) _____________________ sulfur (2 chemical formulae) ____________________
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CHEM 2045C: Quiz 9 Eng Q8059x09 Show your work for full credit 5. (2 pts) Give the formula of a compound containing a peroxide ____________________ superoxide ____________________ 6. (3 pts) Diatomic elements. i. Give the chemical formulae for all the diatomic elements that exist at room temperature.
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