Terbium... It looks crome. Terbium... You can break it with a phone. Terbium it's number 65. Terbium.... Yeh.

 

Uses
Properties
History
Occurence

 

Uses

Terbium is used in some every day items. Some of these items are Fluorescent lamps, TV tubes, compact discs, the fabrication of  high-definition x-ray screens, and electronic devices. It is also used in Alloys and to dope Calcium fluoride, calcium tungstate and Strontium molybdate. Dope means “to mix with”. Doping is used to make some sort of desired property. For instance if a woman wants a gold ring but she doesn’t have enough money she could ask the jeweler to dope it with another metal.

Properties

Terbium is a metal. So that means it has a lot of properties. Some of these are:

  • Melting point- 1355.85?C
  • Boiling point- 3041?C
  • Malleable
  • Ductile
  • Fairly resistant to corrosion
  • Very soft
  • Silvery-gray
  • It’s density is 8.23 gams per cubic cm. at 24?C

History

Carl Gustaf Mosander found terbium in 1843. He discovered it by isolating the “oxide” from the mineral “yttria”. He named Terbium for the mineral, which is itself Ytterby, a swedish village where Terbum and Ytteria are often found.
In 1905 George Urbain of France isolated it in it’s almost pure form.

Occurence

Terbium is recovered commercially from the mineral monazite. It is found in a few different places including river sands in India and river sands in Brazil. It is also found in the beach sands of Florida.

 

Terbium
Protons
There are 65 protons.
Neutrons
There are 94 nuetrons.
Electrons
There are 65 electrons.
ATOMIC MASStomiass
The atomic mass is 158.9
Symbol
The symbol is Tb

 

 

The element Terbium was found in the Ytterby with the element Erbium, because of this I am linking to the element Erbium.

 

Glossary
Dope (noun)Any thick liquid or pasty preparation, as a lubricant, used in preparing a surface.
Oxide (noun)A compound in which oxygen is bonded to one or more electropositive atoms.
Phosphorus (noun)A luminous appearance resulting from this.
Malleable (adjective)Capable of being extended or shaped by hammering or by pressure from rollers.
Monazite (noun)A reddish- or yellowish-brown mineral, a phosphate of cerium and lanthanum, (Ce,La)PO4: the principal ore of thorium.
Ductile (adjective)Able to undergo change of form without breaking.

 

Bibliography
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"It's Elemental - The Element Terbium." Science Education at Jefferson Lab. 10 Feb. 2009 <http://education.jlab.org/itselemental/ele065.html>.
Marques, Miguel. "Terbium: History." Nautilus Home Page. 2 Jan. 1999. 10 Feb. 2009 <http://nautilus.fis.uc.pt/st2.5/scenes-e/elem/e06510.html>.
Miller, Ron. The Elements What You Really Want to Know. Minneapolis: Twenty-First Century Books, 2006.
The Periodic Table of the Elements, Standard Form. 10 Feb. 2009 <http://periodictable.com/Samples/065.5/s9s.JPG>.
Stwertka, Alberta. A Guide to the Elements. New York Oxford: Oxford UP, 2002.
"Terbium -." Wikipedia, the free encyclopedia. 3 Jan. 2009. 10 Feb. 2009 <http://en.wikipedia.org/wiki/Terbium>.
"Terbium." Terbium. 2003. 10 Feb. 2009 <http://periodic.lanl.gov/elements/65.html>.
Theodore Gray. 10 Feb. 2009 <http://www.theodoregray.com/PeriodicTable/Samples/065.8/s7s.JPG>.
Welcome to nobel.scas.bcit.ca. 10 Feb. 2009 <http://nobel.scas.bcit.ca/resource/ptable/ptblegif/tb.gif>.
Winter, Mark. "| Terbium | Essential information." WebElements Periodic Table of the Elements. 1993. 10 Feb. 2009 <http://www.webelements.com/terbium/>.


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