Ionic Bonding and Ionic Compounds

1
Ionic Bonding and Ionic Compounds

• Section 6-3

2
Terms

• Ionic Compound composed of positive and negative
  ions combined as to be neutral.
• Formula Unit the simplest collection of atoms
  from which an ionic compounds formula can be
  established.

3
Ionic Compound Formation

• As atoms with high electronegativity differences
  approach each other, electrons may be transferred
  as to form ions.

4
Crystal Lattice

• An orderly arrangement of ions that minimizes PE.
• Can be difference shapes.
• Lattice energy is the energy released when the
  crystal forms.

5
Ionic vs. Molecular Compounds

• Ionic compounds tend to
• Have higher melting and boiling points
• Be harder and more brittle
• Be poor conductors as solids, conductors as
  liquids and conductors in solution.

6
Salt dissolving in Water
See it happen!