Unit 3 - Chemistry

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6 Terms

1
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London Dispersion

  • present in all molecules, whether polar or non-polar.

  • occurs when temporary dipoles are formed

  • occurs with permanent dipoles

  • affected by size of the molecule

2
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Dipole Dipole forces

  • occurs in polar molecules

3
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Hydrogen bonding

  • strongest of the intermolecular forces 

  • occurs in molecules where H is covalently attached to O, N, or F

4
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Polar bond

The difference in electronegativity is 0.5 to 2.0

  • shared unequally

5
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Ionic Bond

Difference in electronegativity is greater than 2

6
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Non - polar covalent 

bond is formed when atoms share electrons equally, resulting in no charge separation.

  • difference in electronegativity is less than 0.4.