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Tube Neon
Why does Neon glow in a vacuum tube??
Well, here is the full questions:
A Noble gas like neon is subjected to an electric charge while it is in a vacuum tube and starts to glow. Explain why?
Help?
--AMB
wikipedia isn't a very reliable source b/c anyone can add details to wikipedia.
when the particles begin to charge which cause the particles to become ionized which creates the orange red color, neon is also a very abundant element in the universe its found in many stars.
also neon tubes are also color coated to give of other colors such as green, purple and blue.
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LED Neon Tube
which of the following is NOT true reguarding neon lights?
-Light is emitted as electrons move through a gas in a tube
-All neon lights are colored by the color of the tubing.
-Neon lights may contain other gases, such as helium or krypton
-each kind of gas produces its own distinctive color.
All neon lights are colored by the color of the tubing.
Red is the color neon gas produces. There are now more than 150 colors possible; almost every color other than red is produced using argon, mercury and phosphor. The colors in order of discovery were blue (Mercury), white (Co2), gold (Helium), red (Neon), and then different colors from phosphor-coated tubes. The mercury spectrum is rich in ultraviolet light which in turn excites a phosphor coating on the inside of the tube to glow. Phosphors are available in most any pastel colors.
(I got that from
The answer to #2 depends on the probability of population of the level. Simply put, the Xe line is weak because electrons don't populate that level with the same probability that they populate the He.
2 under my car and 4 one each door what can i say i am a big fan of neon light on my truck its a show truck 2007 yukon