Ruthenium | Chemistry

Stouffville District Secondary School, Stouffville, Ontario, Canada

Ruthenium, 44, Stouffville District Secondary School, Stouffville ON

Ruthenium: Red, white, blue are colours of Ruthenia, (was originally blue and yellow until it was changed by Czech parliament). The Bohr model f atom and nesting dolls represent culture of Ruthenia. The jewellery and ball point pens represent uses of ruthenium; red also represents colours of ruthenium compounds, e.g. ruthenium chloride.

Andy Cherkas, Stouffville District Secondary School, Stouffville, Ontario, Canada

Atomic properties*

Name:

Ruthenium

Symbol:

Ru

Atomic number:

44

Atomic mass:

101.07 amu

Melting point:

2334°C

Boiling point:

4150°C

Density:

12.1 g/cm³

Electronegativity:

2.28

# of Isotopes:

8

State:

Solid

Colour:

Silvery-white-metallic±

Classification:

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/