Arrupe Jesuit High School, Denver, Colorado, U.S.A.
Artwork by Walter Macias, Teacher: Stephan Graham, Arrupe Jesuit High School, Denver, Colorado, U.S.A.
Atomic properties*
Name:
Thorium
Symbol:
Th
Atomic
number:
90
Atomic
mass:
232.04
amu
Melting
point:
1750°C
Boiling
point:
4788°C
Density:
11.7
g/cm³
Electronegativity:
1.3
#
of
Isotopes:
3
State:
Solid
Colour:
Silvery-white**
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/