Why does a salt compound give off light (or a colored flame) when burned? 4. did lithium chloride and sodium chloride give off similar colors? why or why not? 5. explain what you think causes different compounds to give off different flame colors. 6. using your results, identify which substances you would put in a firework to delight a crowd of spectators?

3. The solo metal atoms absorb the heat by moving an electron farther away from the positively charged nucleus of the atom when a metal salt is heated, thus making what is called the excited state. In this state, the metal releases its energy and relaxes its electrons rapidly emitting light instead of heart, thus, this results in the colored light being given off by hotel salts.

4. Since LiCL and NaCl were low frequencies and longer wavelengths, they burned similarly in colors.

5. The frequencies are the cause of the different colors in the flames. The cause of different colors emitting when they go back to a non-excited state is due to the configuration of the energy levels of unalike atoms and how electrons hop across these atoms.

6. Based from my results, I believe that the best to be found in fireworks are NaCl, LiCl, and KCl. The colors yellow, red, and violet offers a different contrast to the night sky.