Is the gas in a blue "neon lamp" actually neon? Explain.

Various Spectra!

Hello Robo

Neon light refers to light-emitting tubes that form lines or texts.
These tubes are evacuated of all air and impurities, and than filled with a gas mixture to a couple of Torr.

Filled with neon will produce yellow-orange-red light.
Filled with Argon and some mercury will produce blue light.
Filled with Xenon will produce purple light.
Other used gasses are Helium and Krypton.

Does this answer your question? :)