Heather Pettit
December 5, 2006
Final Project
EDEL 1440(02)
Chemical Bonding:
Electron configuration of ions and Covalent bonding opportunities
1. Grade level would be high school when you are taking chemistry so grades would
range from 9th to 12th grade.
2. I picked my lesson from some worksheets I did in my PHYS 1090 class. I
received my worksheets from my teachers’ web site at
http://www.barransclass.com/phys1090/lab/lab11_bonding.pdf.
3. The students should learn about how to find the electron configuration using a
periodic table and how take that to find the number of unpaired electrons and
bonds possible. First the students will have practice finding valence
configurations and then they will have more atoms and ions to figure valence
electrons then figure out the unpaired electrons and bonds possible. At the end of
the lesson students should know how to use a periodic table to find valence
configuration and using that to find unpaired electrons and bonds possible.
4. Materials needed for this lesson is a periodic table which can be found online at
http://chemlab.pc.maricopa.edu/periodic/printable.gif.
5. CCM
a. Step One: commit to an outcome
i. How do you think you may find valence electrons? Do you think
that unpaired electrons and bonds possible have anything in
common?
b. Step Two: expose beliefs
i. You may talk in amongst yourself in your groups for a few minutes
on what you may think about your beliefs on what we will do in
these activities.
c. Step Three: confront beliefs
i. You may now try and work on these worksheets in groups and use
what you have for resources in the classroom or the computers to
try and help you do the first two.
d. Step Four: accommodate the concept
i. Now that you have done a few on your own I will now help you
understand this concept and help you do two, to show how it is
done.
e. Step Five: extend the concept
i. Ask the students what they can now use this information for later
on in our activities that will deal with chemistry.
f. Step Six: go beyond
i. Ask all students if they are comfortable or if they would like more
work to do with this concept. Recap what was learned about
valence electrons and unpaired electrons and bonds possible.
6. A rubric on how I would assess the student’s learning of the main concept would
have them do the worksheets and turn them in for a grade and I would give 1
point for each one right.
Name: ________________________
Classroom Activities: Chemical Bonding
Activity 1: Electron configurations of ions
Write down the valence electron configurations of the neutral atoms and ions in
the table below.
Atom
Valence Configuration
Ion
Na
Na+
Mg
Mg2+
O
O2-
F
F-
K
K+
Ca
Ca2+
Cs
Cs+
Sr
Sr2+
S
S2-
I
I-
Valence Configuration
Activity 2: Covalent bonding opportunities
For each atom or ion below, determine the number of its valence electrons,
portion them as evenly as possible to the four valence orbitals on a dot diagram,
identify the number of unpaired electrons, and predict the number of covalent
bonds the atom or ion can make.
Atom or
ion
Number of Valence
Electrons
Dot Diagram
S
S
H
H
B
B
C
C
O
O
O-
O
Cl
Cl
P
P
Ca2+
Ca
Unpaired
electrons
Bonds
possible