Chemical_Bonding

Chemical_Bonding - ____________________...

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CHEM 1201 SI Worksheet Chemical Bonding: Valence Electrons: electrons located in the outer shell of an atom o For main group atoms: # of valence electrons = group # o This similarity of valence electron configuration for each group is the main reason why elements in a the same group have similar ______________ properties Group # Valence Electron Configuration Lewis Dot Symbol I A II A III A IV A V A VI A VII A VIII A [1] Ionic Bonding: ___________________ ___________________ of electrons from one atom to another This bond occurs between a _________________ and a ___________________ Example: Na + Cl - Both ions achieve octet - Electrons are transferred from metal to the nonmetal - Therefore, the metal becomes a cation, the nonmetal becomes an anion [2] Covalent Bonding:
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Unformatted text preview: ____________________ ____________________ of electrons from one atom to another; leads to two atoms SHARING electrons. This bond occurs between a ___________________ and a ____________________ Now, recall Electronegativity the ability to attract shared electrons By the way, why are noble gases excluded? CHEM 1201 SI Worksheet Two Types of Covalent Bonds: 1. Nonpolar Covalent: Occurs when there is an ______________ sharing of electrons in a bond Therefore, occurs between atoms of _________________ electronegativities Example: F + F 2. Polar Covalent: Occurs when there is an ________________ sharing of electrons in a bond Therefore, occurs between atoms of ___________________ electronegativities Example: H + F...
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This note was uploaded on 03/21/2011 for the course CHEM 1201 taught by Professor Cook during the Fall '08 term at LSU.

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Chemical_Bonding - ____________________...

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