Intermediate bonding and bond polarity - 2
- Created by: Shannon
- Created on: 08-05-14 09:30
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- Intermediate bonding and bond polarity
- Electronegativity
- The ability to attract the bonding electrons in a covalent bond
- The ionic -> covalent continuum
- There is a gradual transition from ionic -> covalent
- Purely ionic and purely covalent bonding are extremes
- Polar bonds and polar molecules
- What makes a polar bond?
- The greater the difference in electronegativity, the more polar the bond
- Polar bonds don't always make polar molecules
- In a more complicated molecule, they may have several polar bonds.
- If the polar bonds are arranged so they point in opposite directions, they cancel out. This means the molecule is non polar over all.
- In a more complicated molecule, they may have several polar bonds.
- The strength of a bond is related to its length
- The stronger the bond, the higher the bond enthalpy, the shorter the bond length
- What makes a polar bond?
- Electronegativity
- The stronger the bond, the higher the bond enthalpy, the shorter the bond length
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