What is an electron dot diagram?

An electron dot diagram is a model that represents valence electrons in an atom as dots around the element’s chemical symbol.

An electron dot diagram is a chart that shows the atomic number of elements.

An electron dot diagram is a graph that illustrates the energy levels of electrons in an atom.

An electron dot diagram is a table that lists the isotopes of an element.

How do you create an electron dot diagram?

To create an electron dot diagram, draw one dot for each electron in the atom, placing one dot on each of the four sides of the symbol and then pairing additional dots.

To create an electron dot diagram, draw circles around the atom to represent electron shells.

To create an electron dot diagram, use arrows to indicate electron movement between atoms.

To create an electron dot diagram, list the number of protons and neutrons in the nucleus.

What does the number of unpaired dots in the electron dot diagram tell you?

The number of unpaired dots in the electron dot diagram tells you how many bonds an atom can form.

The number of unpaired dots indicates the atomic mass of the element.

The number of unpaired dots shows the element's position in the periodic table.

The number of unpaired dots represents the total number of electrons in the atom.

Many atoms are stable with how many valence electrons?

Many atoms are stable with eight valence electrons.

Many atoms are stable with six valence electrons.

Many atoms are stable with four valence electrons.

Many atoms are stable with two valence electrons.

The relationship between the valence electrons of an atom and the chemical bonds the atom can form is:

Valence electrons determine the number and type of chemical bonds an atom can form.

Valence electrons have no effect on chemical bonding.

Valence electrons only affect the physical properties of an atom.

Valence electrons are not involved in chemical reactions.

Compounds are chemical combinations of two or more elements.

Compounds are single elements in their purest form.

Compounds are mixtures of different substances that do not chemically combine.

Compounds are physical blends of two or more substances.

What do compounds and the elements that form them often have?

Compounds and the elements that form them often have very different chemical and physical properties.

Compounds and the elements that form them often have identical chemical and physical properties.

Compounds and the elements that form them often have similar melting points.

Compounds and the elements that form them often have the same atomic structure.

How can atoms bond to form compounds?

Atoms can bond to form compounds by sharing valence electrons.

Atoms can bond to form compounds by losing protons.

Atoms can bond to form compounds by gaining neutrons.

Atoms can bond to form compounds by sharing protons.

What is a chemical formula?

A chemical formula is a group of chemical symbols and numbers that represent the elements and the numbers of atoms of each element in a compound.

A chemical formula is a mathematical equation used to calculate chemical reactions.

A chemical formula is a recipe for cooking chemical substances.

A chemical formula is a type of chemical reaction.

What do the letters in a chemical formula represent?

The letters in a chemical formula represent elements.

The letters in a chemical formula represent compounds.

The letters in a chemical formula represent mixtures.

The letters in a chemical formula represent reactions.

What do molecular models show?

Molecular models show the shape and appearance of the arrangement of atoms in a compound.

Molecular models show the color of atoms in a compound.

Molecular models show the weight of atoms in a compound.

Molecular models show the temperature of atoms in a compound.

What is a covalent bond?

A covalent bond is a chemical bond formed when two or more atoms share one or more pairs of valence electrons.

A covalent bond is a bond formed by the transfer of electrons from one atom to another.

A covalent bond is a type of bond that occurs between metals and non-metals.

A covalent bond is a bond that involves the complete transfer of valence electrons between atoms.

What happens when forming water?

When forming water, valence electrons are shared between oxygen and hydrogen atoms, thereby forming covalent bonds to make three stable atoms.

When forming water, oxygen atoms donate electrons to hydrogen atoms, forming ionic bonds.

When forming water, hydrogen atoms gain electrons from oxygen atoms, resulting in metallic bonds.

When forming water, oxygen and hydrogen atoms repel each other, preventing bond formation.

molecule is a group of atoms held together by covalent bonding that acts as an independent unit

molecule is a single atom that cannot be divided

molecule is a large structure made of repeating units called monomers

molecule is a charged particle that moves freely in a solution

What are the characteristics of covalent compounds?

Covalent compounds generally have low melting points and low boiling points. They are poor conductors of electricity.

Covalent compounds have high melting points and are good conductors of electricity.

Covalent compounds are always soluble in water.

Covalent compounds are typically hard and brittle.

Compare and contrast single, double, and triple covalent bonds.

Single covalent bonds involve one pair of shared electrons, double covalent bonds involve two pairs, and triple covalent bonds involve three pairs.

Single covalent bonds involve two pairs of shared electrons, double covalent bonds involve three pairs, and triple covalent bonds involve four pairs.

Single covalent bonds involve three pairs of shared electrons, double covalent bonds involve four pairs, and triple covalent bonds involve five pairs.

Single covalent bonds involve four pairs of shared electrons, double covalent bonds involve five pairs, and triple covalent bonds involve six pairs.

Which of the following best describes the differences between covalent, ionic, and metallic bonds?

Covalent bonds involve sharing of electrons, ionic bonds involve transfer of electrons, and metallic bonds involve a sea of electrons.

Covalent bonds involve transfer of electrons, ionic bonds involve sharing of electrons, and metallic bonds involve a sea of electrons.

Covalent bonds involve a sea of electrons, ionic bonds involve sharing of electrons, and metallic bonds involve transfer of electrons.

Covalent bonds involve sharing of electrons, ionic bonds involve a sea of electrons, and metallic bonds involve transfer of electrons.

CH 11 Elements and Chemical Bonds

Authored by Hannah Bariola

Science

8th Grade

NGSS covered

Used 1+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the periodic table organize?

The periodic table organizes the chemical elements.

The periodic table organizes the planets in the solar system.

The periodic table organizes the historical events.

The periodic table organizes the mathematical formulas.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Each block in the periodic table describes basic ______ of one element.

properties

colors

shapes

sizes

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The periodic table lists elements in order by ______.

atomic number

alphabetical order

density

melting point

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elements in each group have similar ______ properties.

physical

chemical

biological

electrical

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where are metals located on the periodic table?

Metals are on the left side of the periodic table.

Metals are on the right side of the periodic table.

Metals are in the center of the periodic table.

Metals are at the top of the periodic table.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a chemical bond?

A chemical bond is a force that holds atoms together.

A chemical bond is a type of chemical reaction.

A chemical bond is a process of breaking atoms apart.

A chemical bond is a method of measuring atomic weight.

Atoms contain protons with a ______ charge, neutrons with a neutral charge, and electrons with a negative charge.

positive

negative

neutral

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CH 11 Elements and Chemical Bonds

What does the periodic table organize?

Each block in the periodic table describes basic ______ of one element.

The periodic table lists elements in order by ______.

Elements in each group have similar ______ properties.

Where are metals located on the periodic table?

What is a chemical bond?

Atoms contain protons with a ______ charge, neutrons with a neutral charge, and electrons with a negative charge.

Electrons are the atomic particles that participate in ______.

The maximum number of electrons in the first energy level is ______.

A valence electron is an outermost electron that participates in ______.

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