In an IONIC bond, electrons are lost or gained, resulting in the formation of IONS in ionic...
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Transcript of In an IONIC bond, electrons are lost or gained, resulting in the formation of IONS in ionic...
In an IONIC bond,electrons are lost or gained,resulting in the formation of IONS
in ionic compounds.
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FK+ _
FK+ _
The compound potassium fluorideconsists of potassium (K+) ions
and fluoride (F-) ions
FK+ _
The ionic bond is the attractionbetween the positive K+ ion
and the negative F- ion
ElectronegativityElectronegativity A measure of how strongly an atom A measure of how strongly an atom
attracts electrons in a chemical attracts electrons in a chemical bond.bond.
Fluorine is the most electronegative Fluorine is the most electronegative element on the table, because it is element on the table, because it is small and only needs to gain one small and only needs to gain one electron to have an octet.electron to have an octet.
Francium is the least electronegative Francium is the least electronegative element. element.
Ionic BondIonic Bond Between atoms of metals and Between atoms of metals and
nonmetals with very different nonmetals with very different electronegativityelectronegativity
Formed by the transfer of electronsFormed by the transfer of electrons
Conducts electricity in solutionConducts electricity in solution
Examples; NaCl, CaClExamples; NaCl, CaCl22, K, K22OO
Ionic Bonds: One Big Greedy Thief Dog!
In covalent bonding,atoms still want to achievea noble gas configuration(the octet rule).
But rather than losing or gainingelectrons,atoms now share an electron pair.
Covalent BondingCovalent Bonding
Covalent BondCovalent Bond Between nonmetallic elements of similar Between nonmetallic elements of similar
electronegativity.electronegativity.
Formed by sharing electron pairsFormed by sharing electron pairs
Stable molecules, not conducting in Stable molecules, not conducting in solutionsolution
Examples; OExamples; O22, CO, CO22, C, C22HH66, H, H22O, O,
Polar Covalent BondPolar Covalent Bond
A bond between nonmetals with A bond between nonmetals with a small difference in a small difference in electronegativity.electronegativity.
Electrons are shared Electrons are shared unequally.unequally.
HH22OO
Polar Covalent Bonds: Unevenly matched, but willing to share.