3. How might emission spectra be used in studying stars?

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
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The the third question please make your handwriting clear
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B.
IU
CD
ニ=-三
E E
Data Table 2: Flame Colors of Metallic lons
CHEMICAL
FLAME COLOR OBSERVATIONS
NAME &
FORMULA
Calcium, Ca
orange
Lithium Li
pink
Sodium, Na
orange
Strontium, Sr
orange
Barium, Ba
огаnge
Copper (II),
Cư
green
Potassium, 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 corect. Please make sure that you
answer in complete sentences and in paragraph form.
The identity of the unknown fon is Lithium, Li+. 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.
CONCLUSIONS/REFLECTIONS: Please answer the followwing question in the blue box
provided.
Transcribed Image Text:p Accessibility Last edit was yesterday at 907 PM 10.5 B. IU CD ニ=-三 E E Data Table 2: Flame Colors of Metallic lons CHEMICAL FLAME COLOR OBSERVATIONS NAME & FORMULA Calcium, Ca orange Lithium Li pink Sodium, Na orange Strontium, Sr orange Barium, Ba огаnge Copper (II), Cư green Potassium, 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 corect. Please make sure that you answer in complete sentences and in paragraph form. The identity of the unknown fon is Lithium, Li+. 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. CONCLUSIONS/REFLECTIONS: Please answer the followwing question in the blue box provided.
disWer in complete sentences and in paragraph form.
The identity of the unknown ion is Lithium, Li+. 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.
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 light 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 (i.e. line spectra) than smaller
elements like hydrogen?
Transcribed Image Text:disWer in complete sentences and in paragraph form. The identity of the unknown ion is Lithium, Li+. 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. 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 light 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 (i.e. line spectra) than smaller elements like hydrogen?
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