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I got these wrong because I didn't pay enough attention.

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Which of the following would have the most peaks?

A.) Mg
B.) C
C.) Zn
D.) S

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How many peaks would a neutral Chlorine element have?

It would have 5 peaks.

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What does a PES represent?

A.) Atomic Radius
B.) Ionization Energy
C.) Nuclear Charge
D.) Isotopes

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I most likely missed these questions due to being confused of what the question was asking and trying to compare the two elements displayed in the diagram.

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What is the PES peak ratio for Magnesium (Mg)?

a) 1:1:3:1
b) 1:1:3
c) 1:3:3:1
d) 1:1:2:1

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What information is being displayed in a PES diagram?

A PES diagram displays the ionization energy in the different sub-levels of an element and often displays the comparison between two or more elements and their ionization energies.

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(Avery Lowrance)
Name an element that would show  a PES peak ratio of 1:1:3
- Any element from the noble gas group

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I miss read the graphs

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Explain why some peaks are closer to the left. On different PhotoElectron charts some peaks may be closer to the left because they are closer to the nucleus. This occurs because of nuclear charge.

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How many peaks would a sample of Carbon have?]A 3
B 6
C 2
D 4

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Mult: Which element would be have the highest binding energy?
A)H
B) Rb
C) Fe
D) Ni
Free Response: What does each peak represent? Each peak represents a sublevel like 1s2 and 2s2.

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Why I missed these questions - Ethan Kraft

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Why I missed these questions - Ethan Kraft

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I must've looked at the graph wrong or not used prior knowledge to answer simple questions.

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What do the peaks and their position on a PES represent?
The peaks represent the amount of electron sub levels there are in an element sample, and their positions on the x axis indicate the amount of binding energy they have to the nucleus.

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How many peaks would be on a PES for the element zinc?
A) 1 peak
B) 2 peaks
C) 3 peaks
D) 4 peaks

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Why I Missed These Questions (Paityn York)

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Why I Missed These Questions (Paityn York)

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Any questions I missed in this category would've been due to reading errors, as I feel fairly comfortable with the topic.

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The x-axis of the PES is labeled from highest to lowest energy level. What does this show?

This shows how the closer peaks have a higher binding energy, as they are harder to remove if they are closer to the nucleus.

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Which of the following would show up on a PES of the atom Phosphorous?

a) 1 peak
b) 2 peaks
c) 3 peaks
d) 4 peaks

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I missed these questions because of careless mistakes and because it can get fairly confusing at times because it is backwards.

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On a PhotoElectron Spectra, which element would have the most peaks?
A. H
B. Si
C. Kr
D. Ha

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I missed these questions because I read the graph wrong and did not do good with the wording on some of these type questions.

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Explain the reasoning behind the intensity/ionization energies on a PhotoElectron Spectra being "backwards."

The ionization energies are backwards on a PhotoElectron Spectra because more energy is required to remove an electron from the 1s sub-shell rather than the 2s, 2p, 3s, (etc.) sub-shells. This is because there is more of a pull on electrons due to increased nuclear charge in the 1s sub-shell as they are closer to the nucleus.

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How many peaks would be present on a PhotoElectron Spectra of a neutral Aluminum atom?

A. 7
B. 5
C. 3
D. 4

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Which of the following elements would illustrate 3 peaks on a graph?

a. Lithium
b. carbon
c. Sodium
d. Potassium

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Which peak will be closest to the "y-axis" on a PES for the element Cobalt?
The 1s Peak

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Elements from what period on the periodic table would have the most peaks on a PES?
a) 1
b) 3
c) 4
d) 7

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What is the cause for a huge jump in binding energy on a graph?

A huge jump indicates a change in energy levels.

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I didn't miss these questions, but I almost confused myself on the test by forgetting that the peaks closest to the y-axis are closest to the nucleus.

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I missed these questions because I would get confused when comparing elements graphs in different periods.

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Explain what the peaks represent and what their position means.
Each peak stands for a sub level, starting with 1s closest to the y-axis. Their position on the graph shows the energy required to remove the electrons in the sub level represented. There are gaps in the graph between energy levels because as you get closer to the nucleus the energy required to remove those electrons increases exponentially.

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For the element Sulfur, how many peaks are there?
A) 1
B) 3
C) 4
D) 5

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Why I missed these questions - James Voos

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Why I missed these questions - James Voos

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I don't think I missed any of these questions but if I did I would have probably confused the graph or something.

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Why I missed these questions (Jay Patel)

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Why I missed these questions (Jay Patel)

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I was confused on questions that compared Oxygen to another element and how to explain the discrepancies

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What does each peak on the PES spectrum represent?
Each peak represents the sub energy levels such as 1s and 3p. Depending on how far left or right the ionization energy could be higher.

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What do the peaks on a PES represent? What do the dashed lines represent?

The peaks on a PES show the number of electrons in each sub-level of an atom. The dashed lines on a PES represent the separation of energy levels.

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How many peaks on a PES would there be for a neutral Chlorine atom?
A. 7
B. 5
C. 6
D. 14

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How many peaks would the element of Magnesium have on a PES?
A. 3
B. 6
C. 9
D. 4
Correct Answer: D

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Explain the relationship between electrons in an element and the peaks on a PES.

Each peak on a PES represents a different sub level of an element, and each sub level contains a different amount of electrons. The more electrons in a sub level, the higher the peak will be; the less electrons in a sub level, the lower the peak will be.

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Why I missed these questions- Ashley Armendariz

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Why I missed these questions- Ashley Armendariz

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I found how some of the questions were worded to be confusing, so I wasn't able to cross out answers, which made it harder.

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When representing the element Sulfur on a using a PES, how many peaks would there be?

A. 3
B. 5
C. 4
D. 2

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What does the peaks on a PES  represent?

Each peak represents different sub level of an element. These are an average, not set in place.

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What is the noble gas configuration of Krypton?
A: [Ar 4s2, 3d10, 4p6.

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How many peaks would Li have on a PES?
A.1
B.2
C.3
D.4

Answer: B

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The peaks on a photoelectron spectra represent...?
A) The relationship between isotopes of an element.
B) The effective nuclear charge of an element.
C) The electronegativity of an element.
D) The amount of binding energies of electrons within a substance.

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I don’t think I missed any in this section. The only thing I get confused with is the discrepancies.
(Hope McNish)

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What is the electron configuration for Mg?

Answer: 1s^2,2s^2,2p^6,3s^2
(Hope McNish)

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How many peaks does Gallium have?

a. 7

b. 8

c. 9

d. 3
(Hope McNish)

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I had missed these questions, because I had counted the wrong number of electrons in each peak and I had misread elements’ properties by connecting them to the wrong periodic trends, when I was reasoning for explanations.

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Will it be harder to remove electrons from the first peak of a photo electron spectra from Nitrogen or Oxygen? Explain why?

Answer: It will be harder to remove electrons from the first energy level of an atom of oxygen compared to nitrogen, because oxygen has more protons. The increased number of protons result in a greater electrostatic attraction and effective nuclear energy. This in turn increases the amount of energy needed to remove an electron from respective peaks and thus oxygen has a higher ionization energy.

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What do the peaks of a photo electron spectra represent for an element?
a) the different number of isotopes that the element can form

b) the different number of reactions that it can conduct with its electrons

c) the relative intensity of the number of electrons that can be removed with a certain amount of energy

d) The number of protons the atom contains

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I don't think I missed any of these questions because they were all fairly simple to me.

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How many peaks would P(15) have on a PES?
A. 9
B. 7
C. 5
D. 13

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Explain what the peaks represent on a PES:

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What is a PES and what does it represent?

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Explain what each peak represents on a PES using the element Sulfur.

Each peak on Sulfur represents the different energy sub level in a atom so Sulfur would have 5 consisting of the 1s^2, 2s^2, 2p^6, 3s^2, and 3p^4 shells.

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On the PES of Au how many peaks will it have?
A.5
B.80
C.79
D. 6

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What does a PES show? First Ionization Energy and Nuclear Charge.

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Why I got these questions wrong - Richard Whitfield

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Why I got these questions wrong - Richard Whitfield

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I do not think I missed any questions on PES, however, I got confused on wether first ionization was referring to adding or subtracting an electron.

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How many peaks would the element Lithium have?

A)1
B)2
C)3
D)4

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I missed these questions because I forgot what a PES showed when we took the test.

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Based on a PES for an atom of Barium and that of an atom of Magnesium, which would require the a greater amount of energy for the first ionization.
Magnesium because it has a lesser number of energy levels and therefore a more compact atom. The effective nuclear charge is greater which makes first ionization require more energy.

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On a PhotoElectron Spectra (PES) graph of an atom of Barium, at what relative number of electrons would the final peak reach?
A. 2
B. 6
C. 10
D. 14
E. 4

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I mix up little details like discrepancies and gaps between peaks.

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What does each peak on a PES represent?

Each peak represents a different energy sublevel in an atom.

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How many peaks will Magnesium have on its PES?

A. 2
B.4
C. 5
D. 3

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Explain what a PES depicts.

The Photoelectron Spectra shows the ionization energy for each energy level of an atom.

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Reasons for missing this question- Jenna Trantham

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Reasons for missing this question- Jenna Trantham

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Make sure you measure your peaks correctly. This pairs along with effective nuclear charge. Also, discrepancies deal with electron-electron repulsion.

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What does the photoelectronic spectra prove?

Answer: It proves that it is harder to remove electrons from the 1s than it is from the 3s due to the relative location near the nucleus, making it have greater electrostatic attraction.

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In a PES graph, how many peaks would Iodine have? Explain.

Answer: 5 because iodine has 5 energy levels.

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Why I missed these questions. -Savannah Amick

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Why I missed these questions. -Savannah Amick

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I understand these types of question however the PES with graphs and grids confused me a little. I also made a few stupid mistakes.

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What does an excited electronic configuration look like?
a.1s2, 2s2, 2p6,3s2
b.1s2, 2s2, 2p5, 3s1
c. 1s2, 2s2, 2p5
d. 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10

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When comparing Sr and Sb, which has more peaks on the PES

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How many peaks would Si have?
A 2
B 3
C 4
D 5

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I missed these questions because I found it hard to process the what exactly the question was asking and how to figure it out from the graph. I felt like I was doing the question backwards.

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Explain why Be would have two peaks.
Be occupies 2 energy levels one at 1s and one at 2s. Each peak resembles one of these energy sub levels.

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Struggle with reading some of the graphs if peaks aren't lined up

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What element would end with a 3s1 peak?
A). O
B). Na
C). Mn
D). Ac

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What would a photo spectra of Mg look like?
a. 4 peaks- 2:2
b. 3 peaks- 1:2:1
c. 4 peaks- 2:1
d. 3 peaks- 1:1:1

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What do the x and y axis on a PhotoElectron Spectra represent?

Answer: The x axis represents the energy level while the y axis represents the number of electrons or the photoelectron intensity.

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In which order would Li, F, K, and C be depicted on a PhotoElectron Spectra, assuming the greatest energy is located on the left.

A. K > F > C > Li >
B. Li > C > F > K >
C. C > K > Li > F
D. K > F > C > Li

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Explain why the element Potassium has 6 peaks.
Potassium has 6 peaks because it has 6 sublevels 1s2, 2s2, 2p6, 3s2, 3p6, and 4s2, which all represent on peak on the graph.

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Why I missed these questions (Victoria Contreras)

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Why I missed these questions (Victoria Contreras)

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I missed these questions because sometimes I found it difficult to identify the element when the peaks are not lined up exactly.

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Which of these elements would have 5 peaks, only three of them being the same height?

A) Ne
B) Ar
C) Al
D) Li

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How many peaks would the element Osmium have?
A) 27
B) 13
C) 10
D) 3

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Why Did I Get These Questions Wrong? (Chloe Russell)

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Why Did I Get These Questions Wrong? (Chloe Russell)

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I wasn't confident in my answer choice, and because on some of the graphs I misread the data.

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I overthought the question to the point where I got it wrong

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Reasons I missed these questions Colby Dennis

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Reasons I missed these questions Colby Dennis

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Thought binding energy was Electron affinity on the graphs

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Which element, Magnesium(Mg) or Aluminum(Al), would have more peaks on a PES graph? Explain why.

answer: Aluminum because it has more energy sublevels than Mg.

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Which element below would have only 4 peaks on a PES graph?

a. Hydrogen(H)

b. Potassium(K)

c. Helium(He)

d. Sodium(Na)

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Analyze the photoelectron spectra and give the proper electron configuration.

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A. 1
B. 2
C. 3
D. 4

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What would a photoelectron spectra of Li look like?
A. 3 Peaks: 1-1-1
B. 2 Peaks: 1-2
C. 2 Peaks: 2-1
D. 3 Peaks: 1-2-1

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Is there more or less ionization energy as you go left to right on the PES spectrum? Answer: More energy. The spectrum tells you that you have more energy from the left because that is where the origin or nucleus is.

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Explain why the first peak of the element P is to the right of the first peak of Cl on the PES.

The first peak of P is to the right of the first peak of Cl because it requires less ionization energy to remove electrons. This is because it has less of a nuclear charge due to its lower amount of protons.

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Which subshell would have the greatest peak in the PES of Gallium?
A) 4s
B) 2p
C) 1s
D) 3d

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Why I missed these questions (Maggie Schall)

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Why I missed these questions (Maggie Schall)

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I missed these questions because I missed read the information on the graphs.

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What does the PhotoElectron Spectra represent
a. Atomic Radius
b. Isotopes
c.ionization energy
d.Electron negativity
Answer: Ionization energy