Last modified: Thu 06/15/2017 11:18:47 am ACA

Oklahoma State University

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Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.

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1. Write the complete electron configuration for sulfur, chlorine and magnesium;

a) S

b) Cl

c) Mg

2. Calculate Z*eff for each of the following electrons;

a) a valence electron in sulfur, Z*eff =

b) a valence electron in chlorine, Z*eff =

c) a valence electron in magnesium, Z*eff =

d) an electron in the n = 2 shell in magnesium, Z*eff =

3. Briefly explain each of the following observations,

a) the first ionization energy for chlorine is greater compared to the first ionization energy in sulfur.

b) the first ionization energy for magnesium is smaller compared to the second ionization energy in magnesium.

c) sulfur has a larger atomic radius compared to chlorine.

4. Is there anything about the questions that you feel you do not understand? List your concerns/questions.

5. If there is one question you would like to have answered in lecture, what would that question be?