Lewis Dot Structure and Ionic Bonding Quiz

What is the purpose of a Lewis dot structure?

• To show the valence electrons of an atom and how they are shared in a molecule.

• To indicate the state of matter of a molecule

• To show the atomic number of an atom

• To demonstrate the isotopes of an element

Which of the following elements is most likely to form an ionic bond?

• Hydrogen (H)

• Sodium (Na)

• Oxygen (O)

• Carbon (C)

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What is the octet rule?

• Atoms tend to gain, lose, or share electrons in order to have a full inner shell with eight electrons.

• Atoms tend to gain, lose, or share electrons in order to have a full outer shell with six electrons.

• Atoms tend to gain, lose, or share electrons in order to have a full outer shell with four electrons.

• Atoms tend to gain, lose, or share electrons in order to have a full outer shell with eight electrons.

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Which of the following is a cation?

• An atom that has lost electrons and has a positive charge

• An atom that has gained electrons and has a negative charge

• An atom that has an equal number of protons and electrons

• An atom that has no charge

Which of the following is an anion?

• Na+

• Cl-

• H2O

• CO2

What is an ionic compound?

• A compound composed of metallic bonds

• A compound composed of hydrogen bonds

• A chemical compound composed of ions held together by electrostatic forces.

• A compound composed of covalent bonds

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How many valence electrons does oxygen have?

• 6

• 8

• 4

• 2

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Which of the following elements is most likely to form an anion?

• Oxygen (O)

• Sodium (Na)

• Chlorine (Cl)

• Magnesium (Mg)

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What is the charge of Li?

• 0

• -1

• +2

• +1

What is the charge Oxygen?

• -2

• 0

• +2

• +1