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2. Explain how light is emitted when an element gets excited.

2. Explain how light is emitted when an element gets excited.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Data Table 2: Flame Colors of Metallic lons CHEMICAL FLAME COLOR OBSERVATIONS NAME & FORMULA Calcium, Ca огange Lithium Li pink Sodium, Na orange Strontium, Sr огаnge Barium, Ba orange Copper (II). Cư green Po sium, K white UNKNOWN pink ABSTRACT: Write a Claim/Evidence/Reasoning paragraph that answers the problem question: "What is the identity of the unknown ion?" Start with a claim sentence that directly answers the question. Then provide specific data as evidence that supports your claim as well as a summary of how you obtained that specific data. Finally, explain in detail exactly how that evidence proves that your claim is correct. Please make sure that you answer in comnplete sentences and in paragraph form. The identity of the unknown ion is Lithium, Lit. Because, the flame color of an unknown ion is pink.Each element has its own characteristic emission spectrum. From the given data, the only ion that gives a pink color on flame test is Lithium. The principle behind flame test is - when the metal ion is heated, the atoms in it absorb the energy and gets excited to higher energy levels and when they return to the original level, emits energy in the form of visible light.
Transcribed Image Text:Data Table 2: Flame Colors of Metallic lons CHEMICAL FLAME COLOR OBSERVATIONS NAME & FORMULA Calcium, Ca огange Lithium Li pink Sodium, Na orange Strontium, Sr огаnge Barium, Ba orange Copper (II). Cư green Po sium, K white UNKNOWN pink ABSTRACT: Write a Claim/Evidence/Reasoning paragraph that answers the problem question: "What is the identity of the unknown ion?" Start with a claim sentence that directly answers the question. Then provide specific data as evidence that supports your claim as well as a summary of how you obtained that specific data. Finally, explain in detail exactly how that evidence proves that your claim is correct. Please make sure that you answer in comnplete sentences and in paragraph form. The identity of the unknown ion is Lithium, Lit. Because, the flame color of an unknown ion is pink.Each element has its own characteristic emission spectrum. From the given data, the only ion that gives a pink color on flame test is Lithium. The principle behind flame test is - when the metal ion is heated, the atoms in it absorb the energy and gets excited to higher energy levels and when they return to the original level, emits energy in the form of visible light.
The identity of the unknown ion is Lithium, Li+. Because, the flarme color of an runknown ion is pink Each element has its own characteristic emission spectrum. From the given data, the only ion that gives a pink color on flame test is Lithium. The principle behind flame test is - when the metal ion is heated, the atoms in it absorb the energy and gets excited to higher energy levels and when they return to the original level, emits energy in the form of visible light. CONCLUSIONS/REFLECTIONS: Please answer the following question in the blue box provided. 1. What evidence observed in this lab could be used. to support the theory that electrons are found in definite energy levels around the nucleus? 2. Explain how ight is emitted when an element gets excited. 3. How might emission spectra be used in studying stars? 4. Why do you suppose that larger elements such as neon produce more color bands (L.e. Iine spectra) than smaller elements ke hrydrogen?
Transcribed Image Text:The identity of the unknown ion is Lithium, Li+. Because, the flarme color of an runknown ion is pink Each element has its own characteristic emission spectrum. From the given data, the only ion that gives a pink color on flame test is Lithium. The principle behind flame test is - when the metal ion is heated, the atoms in it absorb the energy and gets excited to higher energy levels and when they return to the original level, emits energy in the form of visible light. CONCLUSIONS/REFLECTIONS: Please answer the following question in the blue box provided. 1. What evidence observed in this lab could be used. to support the theory that electrons are found in definite energy levels around the nucleus? 2. Explain how ight is emitted when an element gets excited. 3. How might emission spectra be used in studying stars? 4. Why do you suppose that larger elements such as neon produce more color bands (L.e. Iine spectra) than smaller elements ke hrydrogen?
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