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Neon signs are red-orange

any other color may be called neon signs, but actually have another gas in them.

each noble gas produces a different color when electricity is sent through

they contain only one gas at a time

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12y ago
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15y ago

Because they light up when a current is passed through.

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Q: Why do neon signs contain other noble gases besides neon?
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Noble gases are placed in the group 18 of the periodic table of elements; from about 50 years noble gases are not considered as totally inert elements.


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