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The bond that forms from the sharing of valence electrons

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AtomsPrefix 1mono- 2di- 3tri- 4tetra- 5penta- 6hexa- 7hepta- 8octa- 9nona- 10deca-

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Name first element Name the second element and add ide Use prefixes to indicate the number of atoms in the molecule Exceptionif there is only one of the first atom, mono is left out!

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N2F6N2F6 CO 2 SiF 4 CBr 4 NCl 3 P2S3P2S3 CO NO 2 SF 2 PF 5 SO 2 NO CCl 4 P2O5P2O5 Dinitrogen Hexafluoride Carbon Dioxide Silicon Tetrafluoride Carbon Tetrabromide Nitrogen Trichloride Diphosphorous Trisulfide Carbon Monoxide Nitrogen Dioxide Sulfur Difluoride Phosphorous Pentafluoride Sulfur Dioxide Nitrogen Monoxide carbon tetrachloride diphosphorus pentoxide

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Antimony tribromide Hexaboron monosilicide Chlorine dioxide Hydrogen monoiodide Iodine pentafluoride Dinitrogen trioxide Phosphorus triiodide SbBr 3 B 6 Si ClO 2 HI IF 5 N 2 O 3 PI 3

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Ammonia NH 3 Water - H 2 O Methane - CH 4

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Electron dot notation is used to shown how electrons are shared Molecules are formed Each molecule has 8 valence electrons Except Hydrogen!

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Each line represents the sharing of 2 electrons

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Lone Pair

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PH 3 H 2 S HCl CCl 4 SiH 4

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H 2 HF F 2

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Single Bonds Symbol :

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Draw O 3

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Draw O 2

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N 2 C 2 H 2 CO 2

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Xe,Si, P, S, Cl, Br, and I Sometimes have more than 8 electrons PF 5 Be and B often only have 6 electrons BeCl 3

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Draw C 2 H 4 Label all bonds as sigma or pi

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A single electron, not paired

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As the number of shared electrons increases, bond length decreases Breaking the bond of a short bond is larger than a long bond

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What is an ionic bond and how does it differ from a covalent bond? What is the difference between a sigma bond and a pi bond? Predict the bond energy of each of the bonds in CH 2.

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nitrate ion CHO 2 -1 O 3