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Chemical Bonding

Chemical Bonding. 6.1 – Introduction to Chemical Bonding. Bonds. Chemical Bond – a mutual electrical attraction b/t the nuclei & valence e- of different atoms that binds atoms together Why bond? Stability. Types of Chemical Bonding.

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Chemical Bonding

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  1. Chemical Bonding 6.1 – Introduction to Chemical Bonding

  2. Bonds • Chemical Bond – a mutual electrical attraction b/t the nuclei & valence e- of different atoms that binds atoms together • Why bond? • Stability

  3. Types of Chemical Bonding • Ionic bonding – electrical attraction between cations and anions • Transfer of electrons • Covalent bonding – results from sharing e-

  4. Ionic or Covalent • Very rare for a purely ionic or covalent bond. • Remember electronegativity? • Used to determine bond character • The greater the difference, the greater the ionic character • Why?

  5. Ionic or Covalent • e- negdifference > 1.7 = ionic • e- negdifference between 1.7 and 0.5 = polar covalent • e- negdifference < 0.5 = non polar covalent

  6. Definitions • Nonpolar-covalent bond – bonding e-’s are shared equally between the bonded atoms • Polar – uneven distribution of charge • Polar covalent bond– bonded atoms have an unequal attraction for shared e-

  7. Bond Types

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