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Elements

Published on Dec 03, 2015

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PRESENTATION OUTLINE

1.

PHOSPHORUS

AUTUMN KIRK BLOCK 4
Photo by angela7dreams
2.

PHYSICAL PROPERTIES

  • Phosphorus
  • Symbol is P
  • Solid at room temperature
  • White, red, and black
3.

HISTORY

  • Discovered by Hennig Brandt
  • 1660's
  • Hamburg, Germany
  • First discovered in urine
4.

USES

  • Matches
  • Soft drinks
  • Cleaning agents
  • China dishes
  • Baking powder
Photo by laszlo-photo
5.

ARGON

6.

PHYSICAL PROPERTIES

  • Argon
  • Symbol is Ar
  • Gas at room temperture
  • Colorless
7.

HISTORY

  • Discovered by Sir William Ramsay and Lord Rayleigh
  • 1894
  • Scotland
8.

USES

  • Electric light bulbs
  • Florescent tubes
  • Inert gas shield for arc welding
Photo by r.nial.bradshaw

Autumn Kirk