What element is found in cheaper light bulbs?

Answer 1

Fluorescent tubes create ultraviolet light when electricity is passed through Mercury vapor. The UV light causes the phosphors, dusted over the inside of the tube, to fluoresce--or give off visible light. Three of the elements found in the tube would be: Phosphorous, mercury, and tungsten.

Answer 2

A halogen bulb is an incandecent bulb with a filament made from tungsten which is contained within an inert gas and a small amount of a halogen such as bromine or more comonly iodine. The halogen gas combined with the tungsten filament produces a chemical reaction known as a halogen cycle which increases the lifetime of the filament and prevents blackening of the inside of the bulb by redepositing tungsten from the inside of the bulb back onto the filament. This means it is more effciant.

Answer 3

Tungsten is an element often found in cheaper light bulbs.

Answer 4

In any fluorescent tubes that are minute amounts of the element mercury.