Praseodymium

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Colegio Juan de Lanuza, Zaragoza, Spain

Praseodymium, 59, Colegio Juan de Lanuza, Zaragoza, SpainPraseodymium: Our chemistry students from 3º ESO researched and the art students designed the tile in class as an activity. The tile represents how praseodymium is used: as an alloying agent for aircraft engines; in carbon arc lights which are used in the motion picture industry for studio lighting and projector lights; in cubic zirconia for a yellow-green color and in a nickel alloy used to approach absolute zero within one thousandth of a degree.

Artwork by Javier Montori, Claudia Valle, Alba Carasusan and María Toha.

Teachers: Sofía Basterra, and Víctor Roda, Colegio Juan de Lanuza, Zaragoza, Spain

Atomic properties*

Name:

Symbol:

Atomic number:

Atomic mass:

Melting point:

Boiling point:

Density:

Electronegativity:

Number of isotopes:

State:

Colour:

Classification:

Praseodymium

Pr

59

140.91 amu

931°C

3520°C

7.01 g/cm3

1.13

1

Solid

Silvery-white**

Metallic**

 

* Haynes, W. M. (2011). CRC Handbook of Chemistry and Physics, 91st edition: http://www.hbcponline.com/ Retrieved April 7, 2011

** Winter, M. (2010). Home of the Periodic Table. Retrieved April 8, 2011, from Web Elements: http://www.webelements.com/