Steve Marsden’s

At the beginning of the year we discovered that many compounds can be divided into two broad categories based on a few simple criteria:

  • ionic compounds
    electrons are transferred
    generally metals + non-metals
    attraction force is opposite charge
    "ionic bond"
  • molecular compounds
    outer or valence electrons are shared
    generally non-metals only
    attraction is simultaneous among electrons and protons of different atoms
    "covalent bond"

How do these bonds form and why?