Periodic Table Group and Classification of the of the Roentgenium Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Roentgenium is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. Elements classified as Transition Metals are generally described as ductile, malleable, and able to conduct electricity and heat. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals.

Facts about the History and the Discovery of the Roentgenium Element
Roentgenium was discovered by S. Hofmann at the Gesellschaft für Schwerionenforschung in Darmstadt, Germany in 1994

History of the Periodic Table
Check out the brief History of the Periodic Table which details dates and the names of famous scientists and chemists who contributed to the development of the Periodic Table.

Occurrence of the Roentgenium Element
Man-made

Abundances of the element in different environments
% in Universe N/A
% in Sun None
% in Meteorites None
% in Earth's Crust None
% in Oceans None
% in Humans None

Associated Uses of Roentgenium
No known uses

The Properties of the Roentgenium Element
Name of Element : Roentgenium
Symbol of Element : Rg
Atomic Number of Roentgenium : 111
Atomic Mass: [272] amu
Melting Point: N/A
Boiling Point: N/A
Number of Protons/Electrons in Roentgenium : Unknown
Number of Neutrons in Roentgenium : Unknown
Crystal Structure: Unknown
Density Unknown
Color of Roentgenium : Unknown

Roentgenium as on the Periodic Table
Check out Roentgenium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the Periodic Law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Roentgenium as on the Periodic Table for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide.

What is Roentgenium - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri  Mendeleev knew in his day in his day but still all fitting into his concept of  the "Periodic Table" in which Roentgenium is just one element that can be found.

Learn about what is Roentgenium with these fast facts...
These articles contain facts and information relating to Roentgenium and each of the other elements including the Periodic Symbol,  group, classification, properties and atomic number which is often referred to as the Periodic Table Number. Test your knowledge of chemistry and the Periodic Table by completing the Element Symbols and Atomic Numbers on our Blank Periodic Table. Chemistry students will also find a helpful section on Chemical Formulas.