â¢ Graduate Medical Education (GME) for physicians. Inpatient care units at a VAMC can be categorized into two general types; from lowest to highest patient acuity: Medical / Surgical (M/S) and Intensive Care Unit (ICU).
That means that the different types of metals used in the stars each have a characteristic color. Here are some of the metals and specific compounds that are typically used in fireworks to produce different colors: Red: strontium (strontium carbonate, SrCO3), for intense reds and lithium (lithium carbonate, Li2CO3, or lithium chloride, LiCl) for medium reds. Orange: calcium (calcium chloride, CaCl2)
Exciting Electrons using LIGHT. When metals or metal salts are heated in a flame, the flame becomes highly coloured. These colours are due to the electrons getting excited! Fireworks are made up of metal salts-they take advantage of the different colours that are produced when metal ions or atoms are heated. Lithium (left), sodium (middle) and copper (right) salts give pink, yellow and green flame colours.