Name: Group. # Chemistry Date: Period: Flame Test for Metals Pre-Lab Questions Read pages 94 – 97 and answer the following questions. 1. What is a photon? 2. When is an atom in an “excited” state? 3. How do atoms become “excited”? 4. What is a “ground state” electron? 5. What happens when an atom returns to the ground state? 6. What is the difference in a “continuous” spectrum and a “line-emission” spectrum? 7. When is a photon of radiation emitted from an excited atom? 8. Draw a diagram showing the absorption and emission of a photon by a hydrogen atom. (figure 4-8). 9. Answer Handbook Search question 52 a, b, c, & d on page 121. a. b. c. d. 10. In this lab, samples of metals will be heated in the flame of a Bunsen burner. Based on your answers in question 9, what would be the purpose of this lab? 11. An open flame on a Bunsen burner will be used in this lab. What safety precautions should be followed when working with an open flame? 12.
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