PHOSPHOROUS,GALLIUM

PHYSICAL PROPERTIES

• It is a solid.
• Color: yellow,red and black
• Phosphorus
• P

HISTORY

• Who discovered it? Hennig brand
• When was it discovered? 1669
• Where was it discovered? Hamburg, Germany

USES

• White phosphorus is used in flares and incendiary devices.
• Red phosphorus is in the material stuck on the side of matchboxes, used to strike safety matches against to light them.

PHYSICAL PROPERTIES

• Gallium
• Ga
• Liquid
• Silvery blue

HISTORY

• Paul-emile lecoqde boisbaudran
• 1875
• France

USES

• Thermometers
• Mirrors
• Solar devices
• Neutrino detectors