Photoelectron Spectroscopy Insights for AP Chemistry

Photoelectron Spectroscopy Insights for AP Chemistry

Assessment

Interactive Video

Chemistry

6th - 10th Grade

Medium

Created by

Liam Anderson

Used 3+ times

FREE Resource

Mr. Palmer introduces photoelectron spectroscopy (PES), explaining its process and significance in analyzing core electrons in atoms. He discusses how PES graphs are interpreted, using hydrogen and helium as examples, and extends the analysis to other elements like lithium and sodium. The video includes a sample problem to illustrate PES application and concludes with a discussion on binding energy differences between elements. Mr. Palmer encourages students to practice more PES problems for better understanding.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of Photoelectron Spectroscopy (PES)?

To observe the color spectrum of elements

To measure the boiling point of substances

To identify the core electrons in an atom

To determine the molecular weight of compounds

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In PES, what causes electrons to be ejected from the atom?

Shaking the atom vigorously

Applying a strong magnetic field

Bombarding the atom with x-rays or ultraviolet light

Heating the atom to a high temperature

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a peak in a PES graph represent?

The binding energy of the electron

The color of the electron

The smell of the electron

The velocity of the electron

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the term 'binding energy' refer to in a PES graph?

The energy required to change the color of an electron

The energy released when an electron is added to an atom

The energy needed to remove an electron from an atom

The energy required to break chemical bonds

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does helium show a higher peak than hydrogen in a PES graph?

Because helium electrons are faster

Because helium is a noble gas

Because helium has more protons, resulting in a higher nuclear charge

Because helium has a higher molecular weight

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the height of a peak in a PES graph indicate?

The color intensity of the element

The smell intensity of the element

The temperature of the element

The relative number of electrons at that energy level

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the electron configuration of lithium appear in a PES graph?

1s2 2s2

1s2 2s1

1s2 2p1

2s2 2p1

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