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Atomic Spectra Answers

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1
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Which statement accurately describes this atomic spectrum?

Question illustration
A
The black lines represent the energy emitted by the electrons.
B
The black lines represent the energy absorbed by the electrons.
C
The colored lines represent the energy emitted by the electrons.
D
The colored lines represent the energy absorbed by the electrons.
3
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Prediction of the efficiency of possible laser materials:

A
an astronomer
B
a biologist
C
a chemist
D
a physicist

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