CHEM 2045C: Quiz 9 (15 Nov 07) NAME _______KEY_______________ N #_____________ Show your work for full credit Eng Q8059x09 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 Rbb. largest 1stionization energy Fc. smallest (absolute value of) electron affinity Rb2. (3 pts) Name the following groups. Group IA (or 1) alkali metalsGroup VIA (or 16) chalcogensGroup IIA (or 2) alkaline earth metalsGroup VIIA (or 17) halogensGroup VA (or 15)pnictogensGroup VIIIA (or 18) noble gases3. (1 pt) Of Mg and Ba, which element will react with cold water, H2O(l)? Ba (with decreasing ionization energy, reactivity increases down the alkali metals) 4. (4 pts) Give two examples of allotropes for the following elements. carbon (2 names) graphite, diamond, and buckminsterfullerene (or buckyballs or fullerenes)phosphorus (2 names) black, red, and white/yellowoxygen (2 chemical formulae) O2and O3sulfur (2 chemical formulae) S8is the most common, but there are others from S6to S205.
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