unit students read about the evolution of the chemical
bonding theory. It is
important to understand that there are many ways in which
bonding can take place.
Covalent and ionic bondings are just the end members
of a spectrum of bonding. Historically,
it was difficult to imagine how bonding took place.
Sophisticated instrumentation helped to unlocked some
of secrets of how elements bond.
worksheet is just a review to see if they understood the
concepts of valences and electronegativity from the reader.