Chem Lab Experiment
Barakus
worksheet.docxLab 5 Electron Configuration CHEM101L
Student Name: Click here to enter text. Access Code (located on the lid of your lab kit):
Pre-Lab Questions
1. What is electron configuration?
2. How is the light emitted by an atom related to its electron configuration?
Data
Table 1: Results of firework material ignition
|
Substance |
Observations |
|
Lithium Chloride | Click here to enter text. |
|
Sodium Chloride | Click here to enter text. |
|
Potassium Chloride | Click here to enter text. |
|
Calcium Chloride | Click here to enter text. |
Post-Lab Questions
1. Write out the electron configurations for each of the following elements. Potassium is already done as an example for you. HINT: The periodic table is very helpful and can be used as a guide.
|
Element |
Electron Configuration |
|
K |
1s22s22p63s23p64s1 |
|
Li | Click here to enter text. |
|
Na | Click here to enter text. |
|
Ca | Click here to enter text. |
2. What is the approximate wavelength of light emitted by each of the salts?
|
Salt |
Color |
Wavelength |
|
LiCl | Click here to enter text. | Click here to enter text. |
|
NaCl | Click here to enter text. | Click here to enter text. |
|
KCl | Click here to enter text. | Click here to enter text. |
|
CaCl2 | Click here to enter text. | Click here to enter text. |
3. Why does a salt compound give off light or a colored flame when burned?
4. Did sodium chloride and potassium chloride give off similar colors? Why or why not?
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