What happens to electrons in an atom when they absorb energy?
Bright Line Spectra and Electrons

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Science
•
9th - 11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
When atoms absorb energy, their electrons move to higher energy levels.
2.
FLASHCARD QUESTION
Front
What occurs when electrons return to lower energy levels after being excited?
Back
Electrons lose energy by emitting light.
3.
FLASHCARD QUESTION
Front
What is the emission spectrum of an element?
Back
The emission spectrum is the spectrum of light emitted by an element when its electrons transition from higher to lower energy levels.
4.
FLASHCARD QUESTION
Front
What type of lines are produced in an emission spectrum when viewed through a spectroscope?
Back
Bright lines.
5.
FLASHCARD QUESTION
Front
What element is known for its characteristic emission spectrum?
Back
Mercury.
6.
FLASHCARD QUESTION
Front
What must an electron do to transition from ground state to an excited state?
Back
An electron must absorb energy.
7.
FLASHCARD QUESTION
Front
What is the relationship between energy levels and electron transitions?
Back
Electrons can move between energy levels by absorbing or emitting energy.
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