Intramolecular Forces and Covalent Bonds
Presentation
•
Chemistry
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11th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
12 Slides • 4 Questions
1
Forces of Attraction Chapter 12 Section 2
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Intramolecular Forces
The attractive forces that hold particles together in ionic, covalent, and metallics bonds are called intramolecular forces.
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Intermolecular Forces
Attractive forces between molecules cause some materials to be solids, some to be liquids, and some to be gases at the same temperature.
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Multiple Choice
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Intermolecular Forces cont.
Dispersion forces are weak forces that result from temporary shifts in density of electrons in electron clouds.
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Multiple Choice
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Intermolecular Forces cont.
Dipole-dipole forces are attractions between oppositely charged regions of polar molecules.
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Multiple Choice
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Intermolecular Forces cont.
Hydrogen bonds are special dipole-dipole attractions that occur between molecules that contain a hydrogen atom bonded to a small, highly electronegative atom with at least one lone pair of electrons, typically fluorine, oxygen, or nitrogen.
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Multiple Choice
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Intermolecular Forces cont.
Hydrogen bonds explain why water is a liquid at room temperature while compounds of comparable mass are gases.
Methane is nonpolar, so relatively weak dispersion forces holding the molecule together.
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Intermolecular Forces cont.
Ammonia and Water both form hydrogen bonds but oxygen is more electronegative than nitrogen making O-H bonds more polar and thus stronger
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Forces of Attraction Chapter 12 Section 2
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