Tungsten
Usually tungsten.
Light bulb filaments are usually made of tungsten, which has a very high melting point. Occasionally carbon is used as a filament.
Argon. As an inert gas, it makes the filament last longer. Some light bulbs also use Krypton.
mercury
Usually tungsten.
Tungsten
Tungsten is an element. It is used in bulbs
Usually tungsten.
Tungsten is the most common element used as the filament in incandescent lightbulbs.
tungsten
Generally, tungsten.
No, not in the filament. You are probably thinking of compact fluorescent light bulbs, which do contain mercury.
Domestic light bulbs are simply the light bulbs (usually of the filament type) used in the home.
They're made of Tungsten.
parallel
Tungsten (W) or wolfram, doped frequently with thorium oxide.
Argon(or nitrogen) and tungsten are used in incandescent light bulbs.