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Periodic Table Of Elements Project

Published on Nov 18, 2015

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PRESENTATION OUTLINE

1.

Tungsten-74 and Praseodymim-59

By: Kaitlyn Waters
4th Block Chemistry

Photo by Darren Cullen
2.

TUNGSTEN (W)

3.

PHYSICAL PROPERTIES

  • Greyish white lustrous metal
  • Solid at room temperature
  • Highest melting point and lowest vapor pressure.
  • Symbol is W
4.

HISTORY OF TUNGSTEN

  • Juan Jose and Fausto Elhuyar-1783
  • Carl Wilhem Scheele-1781
  • W.
5.

USES

  • Arc welding
Photo by State Library of South Australia
6.

HEATING ELEMEMTS

Photo by Great Beyond
7.

RINGS

8.

PRASEODYUM

9.

PHYSICAL PROPERTIES

  • Soft
  • Silvery
  • Malleable
  • Ductile metal
  • Solid at room temp.
10.

HISTORY

  • Carl Auer Von Welsbach
  • 1931
  • Austria
11.

USES:

FLINTS FOR LIGHTERS
12.

PHONE SCREENS

13.

COLORED GLASS

Kaitlyn Waters