EVPP 110 Lecture - Matter and Energy - Chemical Bonds - Student - Fall 2010

EVPP 110 Lecture - Matter and Energy - Chemical Bonds - Student - Fall 2010

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Unformatted text preview: Chemical bonds Ionic Covalent Non-Polar Polar Hydrogen Ionic bonds ions cation anion 3 + 11 protons- 11 electrons 0 net charge + 11 protons- 10 electrons + 1 net charge Sodium (Na) Tends to Become an Cation (+) Loss of an electron Chlorine (Cl) Tends to Become an Anion (-) + 17 protons- 17 electrons 0 net charge + 17 protons- 18 electrons- 1 net charge Gain of an electron ions with opposite charge attracted to each other, forming ionic bond 6 Chemical bonds Ionic Covalent Non-Polar Polar Hydrogen covalent bond =shared pair of electrons 10 Covalent bonds single double triple  strength  as # bonds  13 Single Covalent Bond 14 Double Covalent Bond 15 Triple Covalent Bond N 2 Innermost shell for each atom, each with 2 electrons, not shown Atmosphere composition ~21% oxygen as O 2 ~78% nitrogen as N 2  Plants at base of most terrestrial food chains Must have nitrogen, cant use N 2  Cant break strong triple covalent bond...
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This note was uploaded on 01/21/2011 for the course EVPP 110 taught by Professor All during the Winter '08 term at George Mason.

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EVPP 110 Lecture - Matter and Energy - Chemical Bonds - Student - Fall 2010

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