Plasma globes or plasma lamps are filled with noble gases and a high voltage electrode. The most common gasses are neon, argon, xenon, and krypton.
It was David Krypton lamp.
Yes.
krypton-86 lamp
Yes, it is a chemical change.
A combination of neon, argon, xenon, krypton, sodium, metal halide, and mercury. The common fluorescent lamp is a low pressure mercury arc lamp.
The halogen bulb produces a plasma arc on the inside of its quartz filament. Plasma glows at thousands of degrees. That's why they are hot.
Krypton is used to fill electric lamp bulbs which are filled with a mixture of krypton and argon, and for various electronic devices. Krypton is also used in photographic projection lamps, in very high-powered electric arc lights used at airports and in some strobo-lamps, because it has an extremely fast respons to an electric current.
A plasma arc of argon gas and/or other ions, such as mercury vapour, depending on the gas mixture used in the lamp.
Glowing plasma is evident in the light from the aurora borealis and a fluorescent lamp. The aurora borealis is also known as the northern lights.
You might be thinking of a Plasma Lamp.
Ultra heated hydrogen is used to make plasma (as in the plasma rocket, VASMIR, used by NASA).add. But Neon is the common gas used to make the plasma in advertising signs. But any gas may be used (well almost any gas), as long as you have a sufficiently high voltage to ionize the gas.It is normal to put a tiny amount of an easily ionizable gas in the lamp, to initiate the process. If you watch yellow sodium street lights starting up you'll see either a blue 'fore glow' (mercury), or a red fore glow (neon).Many metals may easily be made into a plasma, plasma is not confined to the gases.
This is the first time someone mentions the plasma ball in the few years I been in wikianswers. I like this question because with the plasma ball we could see how Tesla conducted his experiments. Tesla invented the plasma lamp for his experiments with high frequency currents of electricity in a vacuum glass tube, scientifically called an "evacuated tube" The Plasma Ball or lamp was actually first named by Tesla as "an inert gas discharge tube" for a better description. He wanted better light bulbs and he created those as well.