Podcast
Questions and Answers
The attractive forces between atoms and ions within or inside a molecule are called ______ forces.
The attractive forces between atoms and ions within or inside a molecule are called ______ forces.
intramolecular
______ forces are the attractive forces between molecules.
______ forces are the attractive forces between molecules.
Intermolecular
When 1.7 < ΔEN < 3.3, the bond is mostly ______.
When 1.7 < ΔEN < 3.3, the bond is mostly ______.
ionic
When 0.4 < ΔEN < 1.7, the bond is polar ______.
When 0.4 < ΔEN < 1.7, the bond is polar ______.
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When 0.0 < ΔEN < 0.4, the bond is mostly ______ (non-polar covalent).
When 0.0 < ΔEN < 0.4, the bond is mostly ______ (non-polar covalent).
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Ionic bonding occurs when the difference in electronegativity is between 1.7 and 3.3, essentially involving one atom losing one or more electrons and another atom gaining those electron(s). This type of bonding is classified as __________.
Ionic bonding occurs when the difference in electronegativity is between 1.7 and 3.3, essentially involving one atom losing one or more electrons and another atom gaining those electron(s). This type of bonding is classified as __________.
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Covalent bonds are classified into two types: polar covalent – atoms do not share electrons equally, and non-polar covalent – atoms share electrons almost equally. Covalent bonding occurs when the difference in electronegativity is __________ 1.7.
Covalent bonds are classified into two types: polar covalent – atoms do not share electrons equally, and non-polar covalent – atoms share electrons almost equally. Covalent bonding occurs when the difference in electronegativity is __________ 1.7.
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NaCl is composed of a metal atom bonded to a non-metal atom with a difference in electronegativity __________ 1.7, so the bond is classified as ionic.
NaCl is composed of a metal atom bonded to a non-metal atom with a difference in electronegativity __________ 1.7, so the bond is classified as ionic.
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Lewis structures show the arrangements of electrons and bonds in a molecule or polyatomic ion. Atoms form chemical bonds to achieve a full valence shell of electrons either by an exchange of electrons between metal and nonmetal or by the sharing of electrons between non-metal atoms, known as a __________ bond.
Lewis structures show the arrangements of electrons and bonds in a molecule or polyatomic ion. Atoms form chemical bonds to achieve a full valence shell of electrons either by an exchange of electrons between metal and nonmetal or by the sharing of electrons between non-metal atoms, known as a __________ bond.
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The length of a covalent bond is determined by different electrostatic forces. Covalent bonds involve both attractive and repulsive forces. Covalent bonds are a continuum between equal sharing and minimal sharing of electrons, and they occur when the difference in electronegativity is __________ 1.7.
The length of a covalent bond is determined by different electrostatic forces. Covalent bonds involve both attractive and repulsive forces. Covalent bonds are a continuum between equal sharing and minimal sharing of electrons, and they occur when the difference in electronegativity is __________ 1.7.
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Study Notes
Chemical Bonding
- Attractive forces between atoms and ions within a molecule are called intramolecular forces.
- Attractive forces between molecules are called intermolecular forces.
Bond Classification
- When 1.7 < ΔEN < 3.3, the bond is mostly ionic.
- When 0.4 < ΔEN < 1.7, the bond is polar covalent.
- When 0.0 < ΔEN < 0.4, the bond is mostly non-polar covalent.
- Ionic bonding involves one atom losing one or more electrons and another atom gaining those electron(s), and is classified as ionic.
- Covalent bonds are classified into two types: polar covalent (atoms do not share electrons equally) and non-polar covalent (atoms share electrons almost equally).
Covalent Bonding
- Covalent bonding occurs when the difference in electronegativity is less than 1.7.
- Covalent bonds involve both attractive and repulsive forces.
- The length of a covalent bond is determined by different electrostatic forces.
Lewis Structures
- Lewis structures show the arrangements of electrons and bonds in a molecule or polyatomic ion.
Bond Formation
- Atoms form chemical bonds to achieve a full valence shell of electrons either by an exchange of electrons between metal and nonmetal or by the sharing of electrons between non-metal atoms, known as a covalent bond.
NaCl Bonding
- NaCl is composed of a metal atom bonded to a non-metal atom with a difference in electronegativity greater than 1.7, so the bond is classified as ionic.
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Description
Explore the differences between ionic, covalent, and metallic bonding, along with their associated physical properties like conductivity, malleability, solubility, hardness, and melting points. This quiz is based on Chapter 4 of Chemical Bonding and Properties of Matter in the UNIT 2 course.
