Multiple Choice
The emission spectrum of helium is shown below. Which emission spectrum line has the highest energy?
9. Electrons in Atoms and the Periodic Table
Emission Spectrum (Simplified)
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In a simplified model of an atomic emission spectrum, emission of light from an atom occurs when an electron does which of the following?
A
Moves from a lower-energy level to a higher-energy level by absorbing a photon
B
Is removed from the atom (ionization), emitting visible light as it leaves
C
Remains in the same energy level and emits a photon continuously
D
Moves from a higher-energy level to a lower-energy level, releasing a photon
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