1. SAMPLE FREE RESPONSE QUESTION 1  Write a brief explanation for the statement: bromine has a smaller atomic radius that calcium.

2. SAMPLE FREE RESPONSE QUESTION 2  Write a brief explanation for the statement: the second ionization energy for barium is much lower than barium’s third ionization energy.

3. SAMPLE FREE RESPONSE QUESTION 3  Why do halogens tend to have high first ionization energies?

4. SAMPLE FREE RESPONSE QUESTION 4  Fluorine is described as the most electronegative element on the periodic table. Do you agree? Defend your answer.

5. SAMPLE FREE RESPONSE QUESTION 5  Hydrogen is in the alkali metal column, but it is a nonmetal. Explain how hydrogen fits BOTH descriptions.

6. SAMPLE FREE RESPONSE QUESTION 6  Suggest three atoms or ions that are isoelectronic with S -2. Draw the orbital diagrams to illustrate the concept of isoelectronic.