Chapter 7:Chemical Bonding

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12 Terms

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Lewis dot structures

Dots around the symbol to represent the valence electron in the free atoms

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Octet Rule

this results in all atoms obtaining an outer shell with 8 electrons

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More stable=

lower potential energy

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Double covalent bonds

two atoms share two pairs of electrons

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Covalent bonds

sharing of valence electrons

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Pure Covalent Bond

same atoms having the same attraction for the shared electrons

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Electronegativity

The ability of atom to attract bonding electrons

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Polar Covalent Bond

Atoms bonded together have different attraction and unequally shared

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Pure covalent

the difference in electronegativity between bonded atoms in 0

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Nonpolar covalent 

The difference in electronegativity between bonded atoms is 1.0 to 0.4

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Polar covalent

The difference in electronegativity between bonded atoms is 0.5 to 1.9

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100% ionic

The difference in electronegativity between bonded atoms is lager or equal to 2.0