Covalent Bonding And Lewis Dot Structures Notes Page 2
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Double Covalent Bonds
o ________________________________ pairs of electrons are shared
o Consist of one sigma and one pi bond
Pi bond (π) – forms when parallel orbitals overlap and share electrons below and above where
the two atoms are joined together
Drawing of a sigma and pi bond:
o Example of double bonded molecule: O
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Triple Covalent Bonds
o __________________________________ pairs of electrons are shared
o Consist of one sigma and two pi bonds
o Example of triple bonded molecule: N
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Strength of Covalent Bonds
o Bond Length:
Bond Length Trends
(1) The shorter the bond length, the _______________________________ the bond
(2) Triple bonds are shorter and stronger than double bonds and double bonds are
shorter and stronger than single bonds
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