Butler County High School, Morgantown, Kentucky, U.S.A.
Student Trevor Cardwell, Butler County High School, Morgantown, Kentucky, U.S.A.
Atomic properties*
Name:
Roentgenium
Symbol:
Rg
Atomic
number:
111
Atomic
mass:
(272)
amu
Melting
point:
No
data
Boiling
point:
No
data
Density:
No
data
Electronegativity:
No
data
#
of
Isotopes:
1
State:
No
data
Colour:
No
data
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/