Chemical Bonding Practice

What is the difference between ionic and covalent bonding?

• Ionic bonding involves the transfer of electrons, while covalent bonding involves the sharing of electrons.

• Ionic bonding occurs between two nonmetals, while covalent bonding occurs between a metal and a nonmetal.

• Ionic bonding involves the sharing of electrons, while covalent bonding involves the transfer of electrons.

• Ionic bonding results in the formation of a molecule, while covalent bonding results in the formation of a crystal lattice.

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Which type of bonding involves the transfer of electrons?

• Ionic bonding

• Hydrogen bonding

• Metallic bonding

• Covalent bonding

In an ionic bond, which type of atoms tend to lose electrons?

• metal atoms

• Transition metal atoms

• Noble gas atoms

• Non-metal atoms

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In a covalent bond, how do atoms share electrons?

• By repelling each other's electrons.

• By overlapping their outermost electron orbitals.

• By transferring electrons between each other.

• By attracting each other's electrons.

What is a Lewis structure?

• A Lewis structure is a diagram that represents the physical structure of a molecule.

• A Lewis structure is a diagram that represents the charges of atoms in a molecule.

• A Lewis structure is a diagram that represents the isotopes of atoms in a molecule.

• A Lewis structure is a diagram that represents the bonding between atoms in a molecule and the lone pairs of electrons that may exist in the molecule.

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NGSS.HS-PS1-3

Harper, Aria, and Isla are studying chemistry together. They are discussing about covalent bonds. Harper asks, 'How many electrons are typically shared in a single covalent bond?'

• 2

• 3

• 4

• 1

What is the charge of an ion formed in an ionic bond?

• Positive or negative

• Neutral

• Zero

• Opposite

What is the octet rule?

• Atoms tend to gain, lose, or share electrons to achieve a full inner shell of eight electrons.

• Atoms tend to gain, lose, or share electrons to achieve a full outer shell of six electrons.

• Atoms tend to gain, lose, or share electrons to achieve a full outer shell of ten electrons.

• Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

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NGSS.HS-PS1-2

Give an example of a compound formed by ionic bonding.

• potassium bromide (KBr)

• carbon dioxide (CO2)

• sodium chloride (NaCl)

• magnesium sulfate (MgSO4)

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Give an example of a compound formed by covalent bonding.

• NaCl

• HCl

• H2O

• CO2