Essential Question

All matter is made up of atoms. To model atoms, scientists currently use Schrodinger's Electron Cloud Model. This model has a very small but dense and positively charged nucleus. It is surrounded by many moving negatively charged electrons. This electrons move in patterns around the nucleus making it appear to be just a cloud. Atoms however are made up primarily of empty space. For scientists to arrive at this theory they had to combine the theories of many scientists.

Lab Question

After several test comparing the four unknown metal salts to known compounds we have made several discoveries. We believe Unknown A is SrCl2 due to the fact it burned slowly with a vibramt red color.
Unknown B is thought to be KCl because it burns in a very light purple color. Unknown C is thought to be CaCl2 Because it burns a bright orange color and is not visible through cobalt gass. Unkown D is LiNO3 because it burns a red color.