5.2 – Chemical Bonding guided notes
Chemical Bonding
• Chemical Bond – this is a ___________ attraction between the nuclei and _____________ electrons of different
atoms and binds the atoms together.
• Why are most atoms bonded to each other?
Ionic Bonding
• This type of bond results from the ________________ attraction between cations and _____________.
• In this type of bond, atoms completely _______ ________ electrons to other atoms.
Covalent Bonding
• Results from the _______________ of pairs between two atoms.
• In this type of bond, the shared electrons belong to _________ atoms equally
Covalent or Ionic?
• The type of bond that takes place depends on the atoms _________________________. This is the measure of
an atom’s ability to ______________ electrons. It is determined by the difference between the two atoms.
(refer to page 161)
• Nonpolar Covalent
o Difference between ________ and ________
• Polar Covalent
o Difference between ________ and ________
• Ionic
o Difference between ________ and ________
Examples
• What type of bond exists between Sulfur and:
o Hydrogen
o Cesium
o Chlorine
Polar Covalent vs Nonpolar Covalent
• Polar Covalent – the bonded atoms have an _______________ attraction between shared electrons.
• Nonpolar Covalent – the bonded atoms have an ____________ attraction between shared electrons.
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