The Impossible Element Hiding in the Sun
Interactive Video
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Quizizz Content
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Physics, Science, Chemistry, Geography
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11th Grade - University
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Hard
06:01
7 questions
Show answers
1.
Multiple Choice
Which element was discovered in space before being found on Earth?
Francium
Iron
Carbon
Helium
2.
Multiple Choice
What percentage of the universe is composed of helium?
5%
10%
25%
50%
3.
Multiple Choice
What technique was used to identify elements in the sun's spectrum?
Chromatography
Spectroscopy
Radiography
Electrolysis
4.
Multiple Choice
What did the D3 line in the solar spectrum indicate?
Presence of sodium
Presence of argon
Presence of an unknown element
Presence of hydrogen
5.
Multiple Choice
What was the main reason for the initial controversy over the discovery of helium?
It was confused with hydrogen.
It was discovered without a physical sample.
It was not predicted by Mendeleev.
It was too reactive to be isolated.
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