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Noble gases are commonly used in gas discharge tubes commonly known as "neo...
PLEASE HELP
Noble gases are commonly used in gas discharge tubes commonly known as "neon signs". What causes the light produced in these signs?
A. excited electrons falling back to the nucleus
B. electrons being excited to higher energy levels then returning to their original energy level
C. gases reacting with the glass of the sign due to being electrified
D. electricity giving the atoms greater vibrational energy
Answers: 1
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