CHEM 101L St Paul College Electron Configuration Lab Report
Description
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CHEM101L
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Pre-Lab Questions
1. What is electron configuration?
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2. How is the light emitted by an atom related to its electron configuration?
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Data
Table 1: Results of firework material ignition
Substance
Lithium Chloride
Sodium Chloride
Potassium Chloride
Calcium Chloride
Observations
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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
K
Li
Na
Ca
Electron Configuration
1s22s22p63s23p64s1
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2. What is the approximate wavelength of light emitted by each of the salts?
Salt
LiCl
NaCl
KCl
CaCl2
Color
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Wavelength
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3. Why does a salt compound give off light or a colored flame when burned?
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4. Did sodium chloride and potassium chloride give off similar colors? Why or why not?
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Lab 5 Electron Configuration
CHEM101L
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