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By Alicia
8th Grade
Mill Valley Middle School

 

 

"When you want to rant and

rave, Ytterbium won't get in the

way--it's packed up tight sealed

for your delight!"

Discovery

In 1878 Jean Marignac found a new component from erbia which contains all rare earth metals. He found Ytterbium mixed with Lutecia. In 1878 they kept testing the mixed compound's properties and it never has regular results because there never was just one element alone they realized this in 1907 and recognized Ytterbium and Lutecia were two different elements. Coincidentally Von Welsbach found this all out around the same time as Jean Marginac, but he was on the other side of the world. Jean Marginac discovered Ytterbium in Switzerland, but named it after a town in Sweden, Ytterby which is near VAX holm.

\

 

The Name Ytterbium

Ytterbium was originally called neoytterbia because once scientists separated the compound they called ytterbia they decided to name one of he elements(Ytterbium) a almost ytterbia jr. Ytterbium itself is named after a town in Sweden, Ytterby. Ytterbium has many different names in different languages. It is called Ytterbium in English obviously along with Latin, Czech, French, German, Norwegian and Swedish. The other somewhat common name for Ytterbium is Iterbio which is Italian, Portuguese, Spanish and similar to the Croatian Iterbij.

Commonly Found

As the 10th most easily found rare earth metal out of fourteen rare earth metals the major way of coming by ytterbium in its pure form is through the mineral monazite which contains all earth metals from both the lanthanide and Actinide group along with thorium and calcium. Ytterbium is also found in yttria, gadolinite, xenotime and of course erbia which contains ytterbia and which then in turn contains ytterbium and lutecia. Pure fast and efficient way of getting ytterbium from monazite didn't happen until 1953 and there is only about .03% Ytterbium in monazite.

 

 

 

 

Uses

  • It is an alloy.
  • in metal appliances used by Dentists
  • in some x-ray machines to make it work when there is no electricity
  • strengthens steel
  • Used in both metallurgical and chemical experiments
  • It is improving grain refinement
  • It strengthens and magnifies laser beams

 

Properties

Ytterbium is a solid metal, but must be stored in air tight containers because if it isn't it will react chemically with the oxygen in the air and rust. Ytterbium is a soft, silvery white and malleable metal. It is shiny, but becomes dull when it chemically reacts with the air. It is not radio active or particularly toxic. It is in the lanthanide series of transition elements. It is in group three on the periodic table and has an atomic number of seventy. Mineral Acids can dissolve it as they can dissolve many elements. The oxidation number as shown at right is either two or three.

Price

Ytterbium cost 300 dollars per pound. while that could be viewed as a lot of money it is only based on the fact it is a rare earth element found in the earths crust and really it's not that expensive in comparison to elements like gold and carbon when its not in graphite form and makes a diamond.

 

Glossary

Protons: A stable, positively charged subatomic particle in the baryon family having a mass 1,836 times that of the electron. See table at subatomic particle.

Rare elements: Any of the elements 57-71 it is primarily a rare, not easily found element

Alloys:. A homogeneous mixture or solid solution of two or more metals, the atoms of one replacing or occupying interstitial positions between the atoms of the other: Brass is an alloy of zinc and copper. The relative degree of mixture with a base metal; fineness.

1. To combine (metals) to form an alloy.

2.Something added that lowers value or purity.

3. To debase by the addition of an inferior element.

Electrons:A stable subatomic particle in the lepton family having a rest mass of 9.1066 ¥ 10-28 grams and a unit negative electric charge of approximately 1.602 ¥ 10-19 coulombs.

Lanthanide Series:Any of the abundant metallic elements of atomic number 57 through 71.

Metallurgical Experiments:The science that deals with procedures used in extracting metals from their ores, purifying and alloying metals, and creating useful objects from metals.The study of metals and their properties in bulk and at the atomic level.

Actinide Series:The science that deals with procedures used in extracting metals from their ores, purifying and alloying metals, and creating useful objects from metals.

The study of metals and their properties in bulk and at the atomic level.

Malleable: Capable of being extended or shaped by beating with a hammer, or by the pressure of rollers; -- applied to metals.

Radio Active: Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. Of, exhibiting, or caused by radioactivity.

Atomic Number: The number of protons in an atomic nucleus.

 

Bibliography

Images found at:

  • israelvisit.co.il/ services.htm (the piggy bank)
  • www.worldwidelottosweepstakes.com/ money.gif (the money)
  • www.lm.liverpool.k12.ny.us/ .../p.c.gifs/ytterbium.GIF
  • www.chem.yale.edu/.../2Pre1800/ Scheele/Scheele.html
  • library.thinkquest.org/ 12909/Ytterbium.html
  • web1.caryacademy.org/.../ yterbium/ytterbiu.htm