Going Further
Paper logs soaked in solutions of metal salts and dried are sold for
producing colored flames in fireplaces. Make a list of colors and the
metals that produce them. Then check the list of ingredients on logs at
a sales outlet to see if you have predicted correctly. Consider the colors
of flames produced by various metal ions. Do you see any relationship
between the energies of light emitted and the positions of the elements
in the periodic table?