Chemical bonding
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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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Chemical bonding

Chemical Bonding

6.1 – Introduction to Chemical Bonding


Bonds

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

Types of Chemical Bonding

  • Ionic bonding – electrical attraction between cations and anions

    • Transfer of electrons

  • Covalent bonding – results from sharing e-


Ionic or covalent

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?


Ionic or covalent1

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


Definitions

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-


Bond types

Bond Types


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