Bonding Flashcards
(Ionic Solids) conduct electricity when…
molten or dissolved in polar solvent (liquid).
(Ionic Solids) Greater difference in electronegativity correlates to…
a higher melting point.
(Ionic Solids) Smaller cations correlate to…
a higher melting point.
(Vocabulary) Ionic Bond
Cations and anions form electrostatic bonds based on opposite charges. Electronegativity difference of 3.0 or greater.
(Vocabulary) Covalent Bond
A bond in which one atom shares one or more pairs of electrons so that both atoms acquire full octets.
(Vocabulary) Nonpolar Covalent Bond
Covalent bond with an electronegativity difference less than 0.5.
(Vocabulary) Polar Covalent Bond
Covalent bond with an electronegativity difference between 0.5 and 3.0.
(Misc. Bonding) Trends of Bond Energy
High BE = Low PE = Shorter Bond = Stronger Bond
Low BE = High PE = Longer Bond = Weaker Bond
(Misc. Bonding) Resonance Structures and Bond Order
Occurs when multiple Lewis Structures are equally valid. Bond order correlates to bond length; higher bond order = lower bond length.
(Misc. Bonding) Electron orbital hybridization solves…
the discrepancy between the VSEPR and Valence Bond theories (Valence Bond theory gets bond angles wrong).
(Misc. Bonding) Electron orbital hybridization is the theoretical basis to
covalent bonding.
(Misc. Bonding) Cis Isomer
x x
\ /
x = x
/ \
y y
x-chain follows the same side.
(Misc. Bonding) Trans Isomer
x y
\ /
x = x
/ \
y x
x-chain follows opposite sides.
(π and σ Bonds) Single Bond
1σ
(π and σ Bonds) Double Bond
1σ + 1π
