Questions: Below is an energy diagram, similar to that in Figure 1. Hint: Refer back to Figure 1 for guidance.
a. Based on the starting atom in Models 1, 2, and 3 of Figure 3, place and label the electrons a, b, and c on the energy diagram above.
b. Draw and label arrows on the diagram that correspond to the electron transitions shown in Models 1, 2, and 3. Make sure to consider which direction the arrow should be pointing.
c. Are the electronic transitions drawn in part b corresponding to an absorption or an emission of a photon?
d. Using the ionization energies provided in Question 12, calculate the energy (in J) that would be required to promote electron b to the same energy level as electron c.
Transcript text: Below is an energy diagram, similar to that in Figure 1. Hint: Refer back to Figure 1 for guidance.
a. Based on the starting atom in Models 1, 2, and 3 of Figure 3, place and label the electrons $a, b$, and $c$ on the energy diagram above.
b. Draw and label arrows on the diagram that correspond to the electron transitions shown in Models 1, 2, and 3. Make sure to consider which direction the arrow should be pointing.
c. Are the electronic transitions drawn in part b corresponding to an absorption or an emission of a photon?
d. Using the ionization energies provided in Question 12, calculate the energy (in J) that would be required to promote electron $b$ to the same energy level as electron $c$.
Solution
Solution Steps
Step 1: Placing electrons a, b, and c
According to Figure 3 (not provided), electron a starts at n=2, electron b starts at n=3, and electron c starts at n=5. On the provided energy diagram, place "a" on the n=2 energy level, "b" on the n=3 energy level, and "c" on the n=5 energy level.
Step 2: Drawing and labeling transition arrows
Model 1 in Figure 3 (not provided) shows electron 'a' transitioning from n=2 to n=1. Draw a downward arrow from n=2 to n=1 and label it 'a'.
Model 2 shows electron 'b' transitioning from n=3 to n=1. Draw a downward arrow from n=3 to n=1 and label it 'b'.
Model 3 shows electron 'c' transitioning from n=5 to n=4. Draw a downward arrow from n=5 to n=4 and label it 'c'.
Step 3: Determining absorption or emission
All the arrows drawn in the previous step are pointing downwards, which represents a decrease in energy level. A decrease in electron energy levels corresponds to the _emission_ of a photon.
Final Answer:
The electrons a, b, and c are placed on the energy levels n=2, n=3, and n=5, respectively. Downward arrows are drawn from n=2 to n=1 (a), n=3 to n=1 (b), and n=5 to n=4 (c). These downward transitions represent the emission of a photon.