Periodic Table Group and Classification of the of the Technetium Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Technetium 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 Technetium Element
Technetium was discovered by Emilio Segre and Carlo Perrier in 1937 in Italy. Technetium was the first element to be artificially produced.

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 Technetium Element
Man-made but some red giant stars contain an emission line in their spectrum corresponding to the presence of technetium.

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 Technetium
Rust preventative
Radioactive tracing in medicine

The Properties of the Technetium Element
Name of Element : Technetium
Symbol of Element : Tc
Atomic Number of Technetium : 43
Atomic Mass: (98.0) amu
Melting Point: 2200.0 °C - 2473.15 °K
Boiling Point: 4877.0 °C - 5150.15 °K
Number of Protons/Electrons in Technetium : 43
Number of Neutrons in Technetium : 55
Crystal Structure: Hexagonal
Density @ 293 K: 11.5 g/cm3
Color of Technetium : Unknown

Technetium as on the Periodic Table
Check out Technetium 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 Technetium 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 Technetium - 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 Technetium is just one element that can be found.

Learn about what is Technetium with these fast facts...
These articles contain facts and information relating to Technetium 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.