Fall 2023 Final Exam Review

Fall 2023 Final Exam Review

by Kathryn Miller-Krivanek

Part 1: The Nucleus

Here are the key learning goals you will be tested on:

• ​Label the atomic symbol parts.

• Identify the charges of subatomic particles.

• Identify a nuclear reaction type from a given model.

• Identify an element from the mass spectrum. (Honors Only)

Multiple Choice

What is the correct label for the number in the top left corner of the atomic symbol?

• Atomic Number

• Charge

• Element Symbol

• Mass Number

Multiple Choice

What is the type of nuclear reaction represented by this model?

• Alpha Decay

• Beta Decay

• Nuclear Fission

• Nuclear Fusion

Multiple Choice

What is the type of nuclear reaction represented by this model?

• Alpha Decay

• Beta Decay

• Nuclear Fission

• Nuclear Fusion

​Part 2: Emission & Absorption

Here are the key learning goals you will be tested on:

• ​Draw a model for emission or absorption.

• ​Determine if an electron is absorbing or emitting energy in a given situation.

• ​Explain the key features of an emission or absorption spectrum.

• ​Calculate the wavelength, frequency, or Energy of a photon of light.

Multiple Select

First, an electric current passes through a gas in a discharge tube.

Select the model and the sentence that describes what the electron does in this situation. You should select 2 answer options.

• The electron is absorbing electrical energy.

• The electron is emitting light energy.

Multiple Select

Then, a blue glow is observed.

Select the model and the sentence that describes what the electron does in this situation. You should select 2 answer options.

• The electron is absorbing electrical energy.

• The electron is emitting light energy.

Multiple Choice

What is the best description for the picture on the right?

• Absorption Spectrum

• Rainbow

• Emission Spectrum

• Line Spectrum

Multiple Select

Why do we only see black lines at certain spots?

Select only the relevant answers.

• The atom can only emit certain colors of light because the electron must be promoted to an exact energy level.

• All of the other colors of light just pass through the sample without being absorbed.

• The atom can only absorb certain colors of light because the electron must be promoted to an exact energy level.

• The black lines represent the light that is passing through the sample. All the other colors are being absorbed.

Multiple Choice

Calculate the wavelength of a light wave that has an energy of 4.23 x 10^-19 J.

What variable would be used to label the orange number given above?

• $$E$$  

• $$\lambda$$  

• $$\nu$$  

• $$h$$  

• $$c$$  

Multiple Choice

Calculate the wavelength of a light wave that has an energy of 4.23 x 10^-19 J.

What variable would be used to label the unknown?

• $$E$$  

• $$\lambda$$  

• $$\nu$$  

• $$h$$  

• $$c$$  

Multiple Select

Calculate the wavelength of a light wave that has an energy of 4.23 x 10^-19 J.

What equation(s) need to be used to solve the problem??

• $$E=h\nu$$  

• $$c=\nu\lambda$$  

​Part 3: Electron Diagrams and Configurations

​Here are the key learning goals you will be tested on:

• ​Label the quantum mechanical model components.

• Define what the orbitals in an electron diagram represent.

• ​Draw electron diagrams and write electron configurations for elements and ions.

• ​Write the short-hand electron configuration for a given element. (Honors Only)

Multiple Choice

What do these shapes represent?

• electron

• s orbital

• p orbital

• d orbital

Multiple Choice

What do these shapes represent?

• electron

• s orbital

• p orbital

• d orbital

Multiple Choice

Which image represents the neutral electron diagram for phosphorus?

​Part 4: Periodic Trends

​​Here are the key learning goals you will be tested on:

• ​Identify the trends in ionization energy, atomic radius, and electronegativity on the periodic table.

• ​Put elements in order of increasing or decreasing ionization energy, atomic radius, and electronegativity.

• ​Use Coulomb's Law to write an explanation for a comparsion in atomic radius or ionization energy.

Multiple Choice

What is the trend in ionization energy going left to right across a period?

• Increases

• Decreases

• Stays the Same

Multiple Choice

What is the trend in atomic radius going left to right across a period?

• Increases

• Decreases

• Stays the Same

Multiple Choice

What is the trend in electronegativity going down a group?

• Increases

• Decreases

• Stays the Same

Multiple Choice

Which element has the highest ionization energy?

• Magnesium (Mg)

• Silicon (Si)

• Chlorine (Cl)

• Sodium (Na)

Multiple Choice

Which element has the largest atomic radius?

• Magnesium (Mg)

• Silicon (Si)

• Chlorine (Cl)

• Sodium (Na)

Multiple Choice

Which element has the highest electronegativity?

• Fluorine (F)

• Bromine (Br)

• Chlorine (Cl)

• Iodine (I)

​Part 5: Bonding

​​Here are the key learning goals you will be tested on:

• ​Identify and differentiate between atoms, electrons, energy levels, molecules, neutrons, the nucleus, and protons.

• ​Identify forces of attraction and repulsion.

• ​Use forces of attraction to explain bonding.

• ​Identify types of bonding using the types of elements present in a substance.

• ​Use bonding models to construct an explanation for properties.

• ​Draw models for ionic bonding and covalent molecules.

• ​Use Lewis structures to predict the electron geometry, bond angle, and molecular geometry.

Fill in the Blanks

Multiple Choice

Identify the type of bonding present in the substance.

$$Zn$$  

• Ionic

• Metallic

• Molecular Covalent

• Network Covalent

Multiple Choice

Identify the type of bonding present in the substance.

$$CuSO_4$$  

• Ionic

• Metallic

• Molecular Covalent

• Network Covalent

Multiple Choice

Identify the type of bonding present in the substance.

$$CH_4$$  

• Ionic

• Metallic

• Molecular Covalent

• Network Covalent

Multiple Choice

Identify the type of bonding present in the substance.

$$SiO_2$$  

• Ionic

• Metallic

• Molecular Covalent

• Network Covalent

Multiple Select

A substance has the following properties:

1. It conducts electricity as a solid.

2. It is insoluble in water.

3. It has a very high melting point.

What could the substance possibly be? Select all possible answers.

• Ionic

• Metallic

• Molecular Covalent

• Network Covalent

Fill in the Blanks

Fill in the Blanks

Multiple Choice

For the given Lewis structure, predict the electron geometry.

• Tetrahedral

• Trigonal Planar

• Trigonal Pyramidal

• There are too many lone pairs to do this.

Multiple Choice

For the given Lewis structure, predict the molecular geometry.

• Tetrahedral

• Trigonal Planar

• Trigonal Pyramidal

• There are too many lone pairs to do this.

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Multiple Choice

What is the electron geometry?

• Tetrahedral

• Seesaw

• Trigonal Bipyradmial

• Bent

Multiple Choice

What is the molecular geometry?

• Tetrahedral

• Seesaw

• Trigonal Bipyradmial

• Bent

Multiple Select

What is the bond angle?

Select the correct answer(s).

• $$90\degree$$  

• $$120\degree$$  

• $$180\degree$$  

• $$109.5\degree$$