Chapter 7 – Atomic Structure & Periodicity
You will need:

Textbook
 Print out of Chapter 7 PowerPoint (available on Mrs. Weston’s website)

Paper & pencil to complete problems
Follow the following steps to complete Chapter 7. The problems will be due on Thursday,
December 1 st
.
1.
Read section 7.1 in your textbook.
2.
Review slides 1-4 of the PowerPoint.
3.
Answer questions 41 & 43 at the end of the chapter.
Related objectives:

List the regions of the electromagnetic spectrum.

State the relationship between the wavelength and frequency of a given region.

Convert between wavelength and frequency.
4.
Read section 7.2 in your textbook. Pay close attention to sample exercise 7.2 & 7.3.
5.
Review slide 5 of the PowerPoint.
6.
Answer question 47 at the end of the chapter.
Related objectives:

Solve problems relating to the interconversion among energy, wavelength, and frequency.

Solve problems relating to the de Broglie equation.
7.
Read section 7.3 in your textbook. Figure 7.6 is important.
8.
Review slides 6 & 7 of the PowerPoint.
Related objective:

Explain the difference between a continuous spectrum & line spectrum.
9.
Read section 7.4 in your textbook. Figure 7.8 is VERY important. Also, pay attention to the sample problems.
10.
Review slides 8-10 of the PowerPoint.
11.
Answer questions 51, 53, 55 at the end of the chapter.
Related objective:

Calculate the associated energies or wavelengths corresponding to electron transitions in the hydrogen atom.
12.
Read section 7.5 in your textbook. Focus on the Heisenberg Uncertainty Principle as well as the probability distribution. This is a difficult concept for most students to understand fully, so don’t worry if it all doesn’t make sense. This is the technical stuff that allows us to discuss orbitals and electron configurations.
13.
Review slides 11-14 of the PowerPoint.
Related objectives:


Describe the basic terms and ideas in the quantum mechanical model of the atom.

Describe the Heisenberg Uncertainty Principle.
14.
Read 7.6-8 in your textbook about quantum numbers. Pay close attention to the tables. I also really like the summary of the hydrogen atom box on page 310. I have a feeling that I will be spending some time in class about this.
15.
Review slides 15-22 of the PowerPoint.
16.
Answer questions 63 & 65 at the end of the chapter.
Related objectives:

Describe the principal quantum numbers n, l, and m l
.

Decide which values for the principal quantum numbers are valid for a variety of problems.
17.
Read 7.9 in your textbook. Basically it describes how to apply quantum mechanical model to more complex atoms.
18.
Review slides 23-24 of the PowerPoint.
19.
Answer question 69 at the end of the chapter.
20.
Read 7.10 in your textbook.
Related objective:

Describe how Mendeleev’s periodic table is similar and different to the modern periodic table.
21.
Read 7.11 in your textbook. This describes orbital and electron configurations. Hopefully, you have seen this before. If not, ask about it in class.
22.
Review slides 25-36 and complete the problems on slide 26.
23.
Answer questions 69, 73, 75, 77 & 82 at the end of the chapter.
Related objectives:

Write electron configurations using both the long hand and shorthand form.

Determine the electron configuration of an element based on its position on the periodic table.
24.
Read 7.12 in your textbook. This reviews the trends of the periodic table. This should be review for you.
25.
Review slides 37-49. Answer the questions on slides 42, 44, and 47.
26.
Answer questions 86, 88, 90, 91 & 96 at the end of the chapter.
Related objective:

Use your understanding of electron configuration to predict trends in ionization energy, electron affinity and atomic radius.
Finally, you should review slides 50-end of PowerPoint for a review on the classifications of the elements of the periodic table.