Observation of Different Photons When Elements Are Heated (Chem Lab)

Observation of Different Photons when Elements argon Heated innovation The bright line spectrum is the range of vividnessful lights that are emitted from an atom in its excited state. A normal atom, or an atom in its lay down state, is when all of the atoms electrons are in their proper cypher level. When an atom is in its excited state, electrons jump to disparate readiness levels qualification them unst up to(p). As the electron tries to get back to its respective energy level, energy is emitted in the form of light (photons).E very(prenominal) subdivision emits a different color that can be categorized into the bright line spectrum. Different elements channel off different modify when heated because they all consume different chemical properties, therefore, they depart react differently under high temperatures. For example, 1 strontium, atomic number 3 carbonate, and strontium carbonate are often used in fireworks to establish a red color. Calcium may be used to take orange, sodium for yellow, aluminum for white, barium chloride for green, copper for blue, strontium and copper for purple, and si for silver.Even though all elements give off unique colors when heated, it is undoable to identify all elements with the naked eye by doing this test because you have to know what color the element burns and sometimes the elements emit very equal colors. In this experiment, five known elements will be regulate under extreme heat to observe the color of the light emitted. Then, 3 unknown elements will be determined based upon the results of the known elements. Materials 1. 2. bunsen burner burner 3. Matches 4. Forceps 5. Wooden toothpicks 6. take of swimming calcium 7.Sample of liquid barium 8. Sample of liquid lithium 9. Sample of liquid sodium 10. Sample of liquid strontium 11. Three unknown liquid samples Procedure 1. turn back on the gas for the Bunsen burner and light it with a match. 2. Using the forceps, take a toothpick and dip it into th e calcium sample. Hold it in the sample for a a few(prenominal) seconds to make sure that the sample has soaked in. 3. Stick the toothpick into the flame from the side, keep mum using the forceps. 4. Record the color seen. 5. Repeat steps 2-4 for the rest of the samples. 6. Turn the gas off. 7.When finished, compare the results of the known elements to the unknown elements to determine what they are they will have the same color. 1- http//chemistry. about. com/od/fireworkspyrotechnics/a/fireworkcolors. htm Results Element Tested colour it Burned Determined to Be Calcium Orange - Barium lily-livered - Lithium Red - Sodium Yellow-Orange - Strontium Darker Red - nameless 1 Orange Calcium Unknown 2 Yellow Barium Unknown 3 Red Lithium Conclusion In conclusion, the unknown elements were able to be determined because their emitted color matched those of calcium, barium, and lithium.This method for determining different elements in a controlled experiment, however, I dont think this method would be effective for determining any unknown element. There are umpteen elements and they may burn unique colors but often times, they are similar. For example, while performing this experiment, it was difficult to determine if unknown element1 was calcium or sodium because they both burned an orangey type color. It is possible that the toothpicks used in this lab got contaminated because someone may have touched them with their hands.If this is the case, hence the elements may have burned a different color than they were alleged(a) to. When performing this experiment, it was observed that the colors of the flames of each sample were different. This is because each element has a different chemical property. For the element that burned a similar color, this may be because they have similar, but different, chemical properties. This method of identifying elements in real life may be used when looking at fireworks. Fireworks are different elements set on fire the different colors that are seen are the different elements returning to their ground state.