The Continuum of Chemical Bonding (Leaving Cert Chemistry): Flashcards
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Basis of bonding continuum
Basis of bonding continuum
Electronegativity difference
Electronegativity difference scale range
Electronegativity difference scale range
0 to 3.2
Pure covalent: electronegativity difference
Pure covalent: electronegativity difference
0 to 0.4
Polar covalent: electronegativity difference
Polar covalent: electronegativity difference
0.4 to <1.7
Ionic bond: electronegativity difference
Ionic bond: electronegativity difference
1.7
Threshold for polar vs nonpolar
Threshold for polar vs nonpolar
0.4
Threshold for covalent vs ionic
Threshold for covalent vs ionic
1.7
Partial charges in polar covalent bonds
Partial charges in polar covalent bonds
and
Rule: electronegativity difference >1.7
Rule: electronegativity difference >1.7
Ionic bonding
Rule: electronegativity difference
Rule: electronegativity difference
Covalent bonding
Metal hydrides bonding exception
Metal hydrides bonding exception
Ionic despite rule suggesting covalent
HF bonding type (difference 1.78)
HF bonding type (difference 1.78)
Covalent (exception to rule)
bonding type (difference 1.94)
bonding type (difference 1.94)
Covalent (exception to rule)
Pure covalent: exact electronegativity difference
Pure covalent: exact electronegativity difference
0 (nonpolar)