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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
Which of the following atoms or ions will produce the strongest absorption lines in the spectra of stars with the highest surface temperatures?
A)   He II, ionized helium   C)   Ca II, singly ionized calcium
B)   Fe I, neutral iron   D)   H I, neutral hydrogen
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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7 years ago
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symbo Author
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7 years ago
Smart ... Thanks!
sadiewolf
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Yesterday
Thank you, thank you, thank you!
oscar520000
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2 hours ago
You make an excellent tutor!
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