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EMISSION OF LIGHT FROM GASES IN DISCHARGE TUBES<br />
Mercury, Hydrogen, Nitrogen & Iodine<br />
Different gases emit light of different characteristic colors upon excitation in an electrical discharge.  Mercury(bright blue), Hydrogen(magenta), Nitrogen(rose-orange), Iodine(purple to violet)

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EMISSION OF LIGHT FROM GASES IN DISCHARGE TUBES
Mercury, Hydrogen, Nitrogen & Iodine
Different gases emit light of different characteristic colors upon excitation in an electrical discharge. Mercury(bright blue), Hydrogen(magenta), Nitrogen(rose-orange), Iodine(purple to violet)

Copyright:© 2003 Richard Megna - Fundamental Photographs

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Richard Megna