Copper
Barium
Magnesium
Silver
Answer is Wrong!
Answer is Right!
The correct answer is C. Magnesium.
Magnesium is a light, strong metal that is easily ignited. It is used in flash bulbs because it burns very
quickly and produces a bright light. Copper, barium, and silver are not as good for this purpose because they are not as flammable.Copper is a good conductor of electricity, but it is not as strong as magnesium. Barium is a heavy metal that is not flammable. Silver is a precious metal that is too expensive to use in flash bulbs.
Magnesium is also used in other applications where a light, strong, and easily ignited metal is needed, such as in fireworks, flares, and incendiary devices.