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INTER MOLECULAR FORCES (bonds)

INTER MOLECULAR FORCES (bonds). Occur between molecules Weaker than intra molecular forces. Hydrogen Bonding . One molecule is polar and has a hydrogen in a H-F, H-O, or H-N bond Other molecule has unshared pairs of electrons, usually on F, O, or N F, N, and O are highly electronegative!!!!

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INTER MOLECULAR FORCES (bonds)

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  1. INTERMOLECULAR FORCES (bonds) Occur between molecules Weaker than intramolecularforces

  2. Hydrogen Bonding • One molecule is polar and has a hydrogen in a H-F, H-O, or H-N bond • Other molecule has unshared pairs of electrons, usually on F, O, or N • F, N, and O are highly electronegative!!!! • Hydrogen forms a weak bond with the unshared pair on the other molecule

  3. Water is a great example of hydrogen bonding

  4. Van Der Waals Bonds • Intermolecular attractions resulting from constant motion of electrons • Creation of instantaneous dipoles

  5. Van Der Waal Bonds • Very Weak!!! • Can occur between noble gas atoms and nonpolar molecules

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