Escience Lab 6: electronic configuration

  

pre-lab questions

1. What is an electron configuration?

2. How is the light emitted by an atom related to its electron configuration? 


experiment 1 data sheet

Table 2: Results of Firework Material Ignition

    

Substance


Observations

 

Lithium chloride (LiCl) 

Sodium chloride (NaCl) 

Potassium chloride (KCl)

Calcium chloride (CaCl2)


Table 3: Electron Configuration

    

Element


Electron Configuration

 

K


 

Li



 

Na


 

Ca


1s2 2s2 2p6 3s2 3p6 4s2

Table 4: Color of Light Emitted by Salt Types

    

Salt


Color


Wavelength

 

LiCl



 

NaCl


Yellow –colored flame


589nm

 

KCl


Pink-colored flame


766nm

 

CaCl2


Orange 


Between    591-603nm

  

Post-Lab Questions

1. Write out the electron configurations of carbon and each of the metals of the salt compounds used. Record this in Table 3. Potassium is already done as an example for you. Hint: The periodic table is very helpful and can be used as a guide.

2. Identify the color emitted by each of the salts along with the corresponding approximate wavelength using Table 1 in the Introduction. Record your results in Table 4.

3. Why does a salt compound give off light (or a colored flame) when burned? 

4. Barium chloride (BaCl2) emits a green color when flame-tested. What can be said about the wavelength of light it emits? 

    • Posted: 19 days ago
    Escience Lab 6: electronic configuration

    Purchase the answer to view it

    blurred-text
    Save time and money!
    Our teachers already did such homework, use it as a reference!
    • pre-lab questions

      1. What is an electron configuration?

      2. How is the light emitted by an atom related to its electron configuration?
      experiment 1 data sheet

      Table 2: Results of …

    • pre-lab questions

      1. What is an electron configuration?


      2. How is the light emitted by an atom related to its electron configuration?
      experiment 1 data sheet

      Table 2: Results of …