301 F10 Worksheet 5 Sparks

301 F10 Worksheet 5 Sparks - Problem Set 5 Dr. Sparks, CH...

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Problem Set 5 Dr. Sparks, CH 301, Fall 2010 Periodic Trends 1. Briefly describe the periodic trends across a row and down a column for each of the following: effective nuclear charge (Z eff ), atomic radii, ionic radii, ionization energy, electron affinity, and electronegativity. Give the reason for each trend. (For example, atomic radii increase as you move down a column because the number of energy levels in the atom is increasing.) 2. Arrange the following in terms of increasing effective nuclear charge a) Cl, Na, P, Al b) F, B, Be, N 3. Arrange the following pairs of ions and atoms in order of increasing ionic radius: A. Sr 2+ and Ca 2+ B. Sr 2+ and Sr C. O -2 and S -2 D. O -2 and O E. O and N F. Mg and Sr G. Mg 2+ and Sr 2+ 4. Rank the following elements in increasing atomic radius: Mg, Cs, F, Br 5. List the following ions from smallest to largest and describe how you figured out the order. Se
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This note was uploaded on 02/21/2011 for the course CHE 301 taught by Professor Fatimafakhreddine during the Spring '08 term at University of Texas.

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301 F10 Worksheet 5 Sparks - Problem Set 5 Dr. Sparks, CH...

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