Intermolecular Forces

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Presentation transcript:

Intermolecular Forces

Intra vs inter Intramolecular forces. within a molecule Intra vs inter Intramolecular forces within a molecule “Atom to Atom” Intermolecular forces “Molecule to Molecule”

Without these forces there would be no liquids or solids Without these forces there would be no liquids or solids. Everything would be a gas.

london Dispersion forces (van der waals forces) london Dispersion forces (van der waals forces) very weak attraction between electron clusters Noble gases and nonpolar molecules.

London Dispersion forces

Dipole-Dipole forces Attraction between positive and negative areas of different molecules.

Hydrogen Bonding. due to polarity. Positive Hydrogen end Hydrogen Bonding due to polarity Positive Hydrogen end attracted to Negative area of another molecule

Hydrogen Bonding in DNA

4. Electrostatic bonding Ionic Bonding between the compounds, not the atoms