2023 Semester 1 Chem Final

Instructions

You may use your notes/work papers to complete the final. NO PHONES OR INTERNET.

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2

A user is constructing an ionic bond between beryllium and chlorine and has reached the stage below. What should the user do next? [Take time to study the picture before you answer]

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2

Lithium nitride has the chemical formula Li3N. Rubidium is in the same chemical family as lithium. What is the formula of rubidium nitride?

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2

How many protons and neutrons does iron-56 have?

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2

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2

The diagram of an atom above shows two regions, the nucleus (1) and the area surrounding the nucleus (2). How are the protons, neutrons, and electrons that make up an atom distributed?

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2

The diagram shows a simplified version of the periodic table along with two arrows indicating down and across (left to right).
What trend is there in ionization energy from element to element moving down and across the periodic table as indicated by the arrows?

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2

All the elements in each column on the periodic table have the same number of __________, making their __________ properties very similar.

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2

The diagram above represents the formation of lithium oxide from its elements. Which of the following statements provides the best explanation of the chemical reaction?

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2

Which element is most likely to chemically combine with calcium (Ca) in a 1:1 ratio?

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6

Using the periodic table as a model, students are asked to complete a graphic organizer that could be used to predict the charges of stable ions formed from atoms in a group on the periodic table.
Atoms are __________ because they have the same number of protons and electrons. However, based on valence electrons, some atoms will easily gain or lose electrons to other atoms in order to achieve noble gas electronic structure. __________are atoms that have gained or lost electrons.  Atoms that have __________ electrons have a positive charge and are called __________.  Atoms that have __________ electrons have a negative charge and are called __________.
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2

A portion of the periodic table is shown below. Which column of elements would be most likely to chemically combine with sodium in a 1:1 ratio?

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2

Select the best statement to describe the phenomenon of light emission from an excited hydrogen atom. (There may be more than one correct statement, but choose the "fullest" correct statement)

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2

Based on the Lewis dot structures above, which two elements are expected to be located in the same group on the periodic table?

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1

Elements in group 15 of the periodic table form ions with a charge of _______ 

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2

SO2 is the formula for sulfur dioxide. Sulfur and oxygen atoms __________ electrons within the sulfur dioxide molecule.

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2

What type of bond will these elements form?

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2

What type of bond will these elements form?

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2

Of the elements shown in the portion of the periodic table, which element is the most electronegative (has the highest electronegativity)?

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2

The image shows Force of Attraction values for four scenarios. Select the best description of the trend shown.

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2

Which statement best describes the relationship between distance and force of attraction.

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1

Choose the correct name for this molecule: CCl4

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1

Which of the following would be the best formula for lead (IV) oxide?

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2

Which is the correct formula for "dinitrogen tetroxide"?

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1

How many valence electrons are in the atom shown in the image above?

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2

2023 Semester 1 Chem Final

A user is constructing an ionic bond between beryllium and chlorine and has reached the stage below. What should the user do next? [Take time to study the picture before you answer]

Lithium nitride has the chemical formula Li3N. Rubidium is in the same chemical family as lithium. What is the formula of rubidium nitride?

How many protons and neutrons does iron-56 have?

The diagram of an atom above shows two regions, the nucleus (1) and the area surrounding the nucleus (2). How are the protons, neutrons, and electrons that make up an atom distributed?

The diagram shows a simplified version of the periodic table along with two arrows indicating down and across (left to right).What trend is there in ionization energy from element to element moving down and across the periodic table as indicated by the arrows?

The diagram above represents the formation of lithium oxide from its elements. Which of the following statements provides the best explanation of the chemical reaction?

Which element is most likely to chemically combine with calcium (Ca) in a 1:1 ratio?

A portion of the periodic table is shown below. Which column of elements would be most likely to chemically combine with sodium in a 1:1 ratio?

Select the best statement to describe the phenomenon of light emission from an excited hydrogen atom. (There may be more than one correct statement, but choose the "fullest" correct statement)

Based on the Lewis dot structures above, which two elements are expected to be located in the same group on the periodic table?

What type of bond will these elements form?

What type of bond will these elements form?

Of the elements shown in the portion of the periodic table, which element is the most electronegative (has the highest electronegativity)?

The image shows Force of Attraction values for four scenarios. Select the best description of the trend shown.

Which statement best describes the relationship between distance and force of attraction.

Choose the correct name for this molecule: CCl4

Which of the following would be the best formula for lead (IV) oxide?

Which is the correct formula for "dinitrogen tetroxide"?

How many valence electrons are in the atom shown in the image above?

What does the number of dots in a Lewis Dot structure indicate about the atom?

A user is constructing an ionic bond between beryllium and chlorine and has reached the stage below. What should the user do next? [Take time to study the picture before you answer]

Lithium nitride has the chemical formula Li3N. Rubidium is in the same chemical family as lithium. What is the formula of rubidium nitride?

How many protons and neutrons does iron-56 have?

The diagram of an atom above shows two regions, the nucleus (1) and the area surrounding the nucleus (2). How are the protons, neutrons, and electrons that make up an atom distributed?

The diagram shows a simplified version of the periodic table along with two arrows indicating down and across (left to right).What trend is there in ionization energy from element to element moving down and across the periodic table as indicated by the arrows?

The diagram above represents the formation of lithium oxide from its elements. Which of the following statements provides the best explanation of the chemical reaction?

Which element is most likely to chemically combine with calcium (Ca) in a 1:1 ratio?

A portion of the periodic table is shown below. Which column of elements would be most likely to chemically combine with sodium in a 1:1 ratio?

Select the best statement to describe the phenomenon of light emission from an excited hydrogen atom. (There may be more than one correct statement, but choose the "fullest" correct statement)

Based on the Lewis dot structures above, which two elements are expected to be located in the same group on the periodic table?

What type of bond will these elements form?

What type of bond will these elements form?

Of the elements shown in the portion of the periodic table, which element is the most electronegative (has the highest electronegativity)?

The image shows Force of Attraction values for four scenarios. Select the best description of the trend shown.

Which statement best describes the relationship between distance and force of attraction.

Choose the correct name for this molecule: CCl4

Which of the following would be the best formula for lead (IV) oxide?

Which is the correct formula for "dinitrogen tetroxide"?

How many valence electrons are in the atom shown in the image above?

What does the number of dots in a Lewis Dot structure indicate about the atom?

The diagram shows a simplified version of the periodic table along with two arrows indicating down and across (left to right).
What trend is there in ionization energy from element to element moving down and across the periodic table as indicated by the arrows?

The diagram shows a simplified version of the periodic table along with two arrows indicating down and across (left to right).
What trend is there in ionization energy from element to element moving down and across the periodic table as indicated by the arrows?