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

Fill in the Blank

What charge does a proton have?

Fill in the Blank

What charge does an electron have?

Fill in the Blank

What charge does a neutron have?

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)

Fill in the Blank

How many electrons does a neutral Selenium (Se) atom have?

Please type in a number answer.

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

Fill in the Blank

What element has the following electron configuration?

$$1s^22s^22p^63s^23p^64s^23d^2$$  

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 Blank

How many valence electrons does a neutral Calcium have?

Enter a number answer.

Fill in the Blank

How many valence electrons does a neutral Phosphorus have?

Enter a number answer.

Fill in the Blank

How many atoms are featured in this molecule?

Enter a number answer.

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 Blank

What is the steric number?

Enter a number answer.

Fill in the Blank

What is the number of lone pairs on the central atom?

Enter a number answer.

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 Blank

For the given Lewis structure, predict the bond angle.

Enter a number answer.

Fill in the Blank

What is the steric number?

Fill in the Blank

What is the number of lone pairs on the central atom?

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).

• $$90\degree$$  

• $$120\degree$$  

• $$180\degree$$  

• $$109.5\degree$$