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Types of Chemical Bonds

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Types of Chemical Bonds - PowerPoint PPT Presentation


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Types of Chemical Bonds. Ionic Bonds. Bonds in which valence electrons are transferred Receiving atom becomes a negative ion (cation) Donating atom becomes a positive ion (cation). Octet Rule & Oxidation Numbers.

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Presentation Transcript
ionic bonds
Ionic Bonds
  • Bonds in which valence electrons are transferred
  • Receiving atom becomes a negative ion (cation)
  • Donating atom becomes a positive ion (cation)
octet rule oxidation numbers
Octet Rule & Oxidation Numbers
  • Octet rule states that atoms are most stable with 8 valence electrons in the outermost orbital (tend to achieve the electron configuration of a noble gas)
  • Oxidation number indicated by the group number (i.e. Na=+1, Ca=+2, Cl=-1, O=-2)
covalent bonds
Covalent Bonds
  • Bonds in which valence electrons are shared
  • Single share 1 pair, double share 2 pairs, triple share 3 pairs of electrons
  • Triple is the strongest, and all are stronger than ionic bonds
hydrogen bonds
Hydrogen Bonds
  • Weakest bonds
  • Attraction between positively charged "end" of a atom and a hydrogen atom (-)
  • Caused by unequal sharing of valence electrons
practice
Practice
  • Draw Lewis dot structures for the following: nitrogen gas, carbon dioxide, chlorine gas, sodium chloride, magnesium chloride, potassium oxide