Mr palermo spectroscopy lab answers

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This is the lab for virtual spectroscopy. The lab manual and the lab report is attached.Shubham Nayak PHYS 202 Prof. Medvar 05-04-2020 Lab 11 Virtual Spectroscopy -- Physics 202 ◼ Introduction: ◼ Shortened Procedure: ◼ Data: ◼ Conclusion: Name: ______________________________ Period: ______ Mr. Palermo- Regent’s Chemistry Spectroscopy Lab Background Info: Bohr proposed that an electron is found only in specific circular paths, or orbits, around the nucleus. As a result, each orbit has a fixed energy called an energy level. These energy levels (orbits) are like the rungs of a ladder (See Figure A). The electrons cannot be found in between these energy levels, just like a person cannot stand in between the rungs. Electrons must gain energy (become excited) to move up energy levels. Electrons can become excited by heat, light, electricity etc. These high energy electrons are unstable and eventually fall back down to their lower energy levels (ground states) releasing the energy that they had gained when they were initially excited. This energy is released in the form of light and it is what Bohr observed. White light will produce a continuous spectrum when viewed using a prism or spectroscope (see Figure B). Different colors of light have different energies. When electrons of an atom are excited they will release different colors of light as they fall back to ground state (this is called emission line Figure A spectra. The colors of light correspond to the amount of energy released (See Figure C). Using a spectroscope you can view the emission line spectra. Different elements produce different spectra that are unique enough to be considered a “fingerprint” of the element. Figure C Figure B Objective: In this virtual lab you will: 1. Observe the bright line spectra (emission spectra) for various elements. 2. Use a flame test to observe the color produced when metal ions are heated. 3. Identify unknown metals ions based on the results of the flame test. © www.mrpalermo.com Name: ______________________________ Period: ______ Mr. Palermo- Regent’s Chemistry Procedure: Click on the link to access the Online Spectroscopy Lab. www.mrpalermo.com/spectroscopylab. Part I. 1. Write the name of each element located in Part I. into data table 1 located below. Then click on each element and observe the line spectra that are produced. In data table 1 draw lines under each letter representing the colors that you observed. (R= red, O= orange, Y= yellow, G= green, B= blue & V= violet…..Indigo was left out because it is difficult to distinguish in this activity). 2. Write the name of each metal ion located in Part II. Into data table 2 located below. Then click on each element to observe the color produced from the flame test. Record your results into table 2 located below. Using these results click on the two unknowns and record their flame colors. Identify the name of each unknown metal ion based upon your flame test results.