What periodic table elements do the following light types use?

Question

Compact Fluorescent Lights (CFC)
Incandescent*
LED (Light Emitting Diodes)
Halogens*
Metal Halides*
Sodium*

Answer 1

I am not sure about most of them... but the Sodium lights use a lot of Pb.

Answer 2

compact fluorescent lights- fluorine
incandescent
LED
Halogens- either fluorine chlorine iodine or borine
metal halides
sodium- Na on the periodic table

Answer 3

Compact Fluorescent Lights (CFL) = Mercury

LEDs (blue) = Silicon (under development)
LEDs (Ultraviolet) = Diamond-carbon

Halogen lamp = Tungsten fillament sealed in a glass tube filled with Bromine or Iodine gas.

Metal halide lamp = In a metal halide lamp, the compact arc tube contains a high-pressure mixture of argon, mercury, and a variety of metal halides.

Sodium lamp = It has two inner borosilicate glass U-pipes that hold solid sodium and a small amount of neon and argon gas



constituents of other LEDs:-

# Aluminium gallium arsenide (AlGaAs) - red and infrared
# Aluminium gallium phosphide (AlGaP) - green
# Aluminium gallium indium phosphide (AlGaInP) - high-brightness orange-red, orange, yellow, and green
# Gallium arsenide phosphide (GaAsP) - red, orange-red, orange, and yellow
# Gallium phosphide (GaP) - red, yellow and green
# Gallium nitride (GaN) - green, pure green (or emerald green), and blue also white (if it has an AlGaN Quantum Barrier)
# Indium gallium nitride (InGaN) - near ultraviolet, bluish-green and blue
# Silicon carbide (SiC) as substrate — blue
# Silicon (Si) as substrate — blue (under development)
# Sapphire (Al2O3) as substrate — blue
# Zinc selenide (ZnSe) - blue
# Diamond (C) - ultraviolet
# Aluminium nitride (AlN), aluminium gallium nitride (AlGaN), aluminium gallium indium nitride (AlGaInN) - near to far ultraviolet

Answer 4

Well, considering there's only one periodic table of elements that I'm aware of, I'm gonna guess they all use the same one.

Answer 5

Ar
W
Si/Ge
Halogens (Cl, Br etc)
Salts
Na.