AC1.6 PES

Multiple Choice

Anytime an energy conversion takes place, some of the original energy is converted to which one of the following?

• sound energy

• potential energy

• light energy

• thermal energy

Multiple Choice

Which of the following is a conversion from light energy to chemical energy?

• turning on a stove to heat dinner

• turning on a lamp

• growing an apple tree

• making toast in a toaster

Match

Match the following

• E

• J

• KE

• U

• ΔE

energy

joule

energy of motion

potential energy

change in energy

• energy

• joule

• energy of motion

• potential energy

• change in energy

Categorize

Options (6)

noble gases

halogens

alkali metals

alkaline earth metals

Z < 82

Z > 82

Organize these options into the right categories

Chemically Stable

Chemically unstable

Physically stable

Physically unstable

Multiple Choice

Which types of energy states will cause an atom to try to gain or lose energy?

• ground-state

• excited state

• stationary state

• vacuum state

Multiple Choice

Which type of particle is likely to undergo a nuclear reaction to reach stability?

• Ions

• Isotopes

• Atoms

• Elements

Multiple Select

Which type of particle is likely to undergo a chemical reaction to reach stability?

• Ions

• Isotopes

• Atoms

• Elements

Match

Match the following

• Energy needed to remove an electron

• Energy needed to gain an electron

• Energy needed to break bonds

Ionization energy

Electron affinity

Binding energy

• Ionization energy

• Electron affinity

• Binding energy

Categorize

Options (9)

corpuscle

refracts

light is a wave

diffracts

photoelectric effect

reflects

superposition

relativity

light is both a wave and particle

Who said what and why?

Newton

Young

Einstein

Multiple Choice

Which type of photons will carry the highest energy?

• Microwaves

• Visible light

• X-ray

• Gamma rays

Multiple Choice

The energy of a photon is directly related to which property?

• Intensity

• Frequency

• Wavelength

• Propagation method

Drag and Drop

Albert Einstein proposed the photoelectric effect which states that ​

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of ​

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caused electrons to become "​

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" and be ​

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from an atom.

Drag these tiles and drop them in the correct blank above

absorption

photons

excited

ejected

emission

rested

captured

Drag and Drop

In 1913, Niels Bohr proposed that electrons can move around the ​​

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on in ​

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orbits with certain allowed ​

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. Later we learned that electrons orbit the nucleus in a ​

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orbit.

Drag these tiles and drop them in the correct blank above

nucleus

circular

energy levels

random

electron cloud

probable

quantum energy

Reorder

Place the following parts of the photoelectric effect in the order they occur.

• Energy is absorbed by the electron

• Electron jumps to a higher energy level in an excited state

• Electron falls to a lower energy level back to ground state

• Energy is emitted in the form of a photon

• We can see the photon by observing a color

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Here we see an electron in the ground state and excited state. If the inner ring is energy level n=1 and the outer is n=2, which energy level has more energy?

• n=1

• n=2

• they are the same

Multiple Choice

In the diagram on the left, a photon is being emitted. What must have just occurred in the atom for the photon to be released?

• Energy was absorbed.

• The electron lost energy and fell an energy level.

• The electron jumped up to a higher energy level

• The electron is in the excited state.

Multiple Choice

The image shows a graph of the wavelengths of visible light. Which color of light has the longest wavelength and thus lowest energy?

• Violet

• Cyan

• Yellow

• Red

Multiple Choice

Which has more energy?

• An electron in an excited state

• An electron at the ground state

• An electron in energy level n=1

• An electron that is not a valence electron

Multiple Choice

The color of light can show us which emission has the most energy released by the electrons. Which compound's electrons had the largest change in energy levels?

• Strontium

• Calcium

• Potassium

• Copper

Multiple Choice

Which of the jumps in energy levels would create a photon emission with the most energy?

• n=1 to n=2

• n=2 to n=3

• n=2 to n=4

• n=1 to n=4

Multiple Choice

How many peaks would be expected for a PES spectrum for chlorine?

• 2

• 3

• 4

• 5

Multiple Choice

Which of these elements would have the same number of PES peaks as fluorine?

• Neon

• Beryllium

• Sodium

• Chlorine

Multiple Choice

The PES spectrum is for

• O

• Ne

• N

• F

Multiple Choice

Examine the spectrum. Where would you expect the 2p peak for F to be if it were on the same spectrum?

• To the left of the peak at 3.04

• To the right of the peak at 3.04

• To the left of the peak at 1.31

• To the right of the peak at 1.31

Multiple Choice

What does the 4th peak from the left represent?

• The 2s electrons

• The 3d electrons

• The 2p electrons

• The 3s electrons

Multiple Choice

Which electrons would be ejected with the most kinetic energy according to the spectrum below?

• The ones in the peak at 151

• The ones in the peak at 7.9

• The ones in the peak at 1.09

• The ones in the peak at 0.58

Multiple Choice

Which peak(s) correspond to the valence electrons?

• The peak at 1

• The peaks at 1 and 2.05

• The peak at 239

• The peaks at 239 and 22.7

Multiple Choice

How many valence electrons does the element pictured in the PES spectrum have?

• 1

• 2

• 3

• 4

Multiple Choice

Which peak(s) correspond to valence electrons?

• The peak at 0.8

• The peaks at 0.8 and 1.36

• The peak at 19.3

• The peaks at 19.3 and 1.36