Periodic Table Trends
Supplemental Instruction
Iowa State University / Leader: / Sara
Course: / Chem177
Instructor: / Kingston
Date: / Tuesday, November 4
1) Which of the following would you expect to have the greatest Effective Nuclear Charge? Back your answer up with calculations.
a. Oxygen
b. Fluorine
c. Sulfur
d. Selenium
2) For each of the following isoelectronic pairs, which atom will be larger?
a. F- or Na+
b. Se2- or Br-
c. Br or S-
3) Which of the following would be the SMALLEST?
a. Li
b. Li+
c. B3+
d. B
e. Mg2+
f. Mg
4) Which of the following equations would take the most energy to occur?
a. Na(g) à Na+(g) + e-
b. Na+(g) à Na2+(g) + e-
5) Which of the following equations would take the most energy to occur?
a. Mg(g) à Mg+(g) + e-
b. P(g) à P+(g) + e-
c. Cl(g) à Cl+(g) + e-
6) Which of the following would you expect to have positive ΔE? Which would be the most negative ΔE?
a. F(g) + 1e- à F-(g)
b. Li(g) + 1e- à Li-(g)
c. Ne(g) + 1e- à Ne-(g)
d. Be(g) + 1e- à Be-(g)
e. C(g) + 1e- à C-(g)
7) Which would give off the most energy by adding and electon?
a. Sulfur
b. Chlorine
c. Selenium
d. Iodide
8) Complete the following reactions
a. Metal Oxide + water à
b. Metal Oxide + acid à
c. Non-Metal Oxide + water à
d. Non-Metal Oxide + base à
e. ___CaO(s) + ___H2O(l) à
f. ___CO2(g) + ___H2O(l) à
g. ___Li(s) + ___H2(g) à
h. ___N2O3(g) + ___NaOH(aq) à
i. ___P4O10(s) + ___H2O (l) à
j. ___K2O (s) + H2O (l) à
k. ___Cr2O3 (s) + ___HBr (aq) à
l. ___K(s) + ___S(s) à
9) What is the difference between Oxygen and Ozone?
10) What is a unique characteristic of the Halogens?