| WebElements__Technetium Extensive information on history, uses, occurrence, compounds, and properties. |
| Wikipedia__Technetium Properties of the element, including its history, applications, and characteristics. |
| Radiochemistry_of_Technetium Full text of the monograph by Edward Anders (Enrico Fermi Institute and Dept. of Chemistry, University of Chicago, Chicago, Illinois). [PDF format] (November, 1960) |
| ChemicalElements_com__Rhenium Basic information, atomic structure, and isotopes. |
| EnvironmentalChemistry_com__Rhenium Atomic structure, chemical and physical properties, and table of nuclides. |
| It\'s_Elemental__Rhenium Basic physical and historical information. |
| LANL__Rhenium History, sources, properties, and uses. |
| Lenntech__Rhenium Physical data, chemical properties, and health effects. |
| Rhenium Data tables and historic information. |
| USGS_Minerals_Information__Rhenium Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). |
| Visual_Elements__Rhenium General and physical information, source, uses, key isotopes, and ionisation energies. |
| WebElements__Rhenium Extensive information on history, uses, occurrence, compounds, and properties. |
| Wikipedia__Rhenium Properties of the element, including its history, applications, and characteristics. |
| Radiochemistry_of_Rhenium Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF] (March, 1961) |
| ChemicalElements_com__Mercury Basic information, atomic structure, and isotopes. |
| EnvironmentalChemistry_com__Mercury___Nuclides Extensive information on the nuclides of mercury, including potential parent nuclides. |
| It\'s_Elemental__Mercury Basic physical and historical information. |
| LANL__Mercury Basic information, history, and uses. |
| Lenntech__Mercury Physical data, chemical properties, health and environmental effects. |
| Mercury A very brief description of Mercury, with a good diagram of its electron orbitals. |
| Mercury Data tables and historic information. |
| Mercury_and_Methylmercury_by_IC-ICPMS Analysis of biological, pharmaceutical, and environmental samples for methylmercury and mercury. |
| Mercury,_Get_Mad_Now,_Not_Later Gives a description of mercury, as well as its uses and environmental and health hazards associated with it. |
| Mercury_in_Space Answers the question of what happens to Mercury in space. |
| Mercury_in_the_Laboratory Practical considerations when working with mercury in the laboratory. |
| Sandia_National_Laboratories___Mercury Information about mass of isotopes of mercury. Also information on analyzing it, such as Heavy Ion BackScattering and Rutherford BackScattering. |
| USGS_Minerals_Information__Mercury Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). |
| Vermont_Legislative_Research_Shop_-_Mercury_Information Features basic information about Mercury, as well as its harmful effects and legislation concerning Mercury in some American States. |
| Visual_Elements__Mercury Image, general and physical information, source, uses, key isotopes, and ionisation energies. |
| WebElements__Mercury Contains extensive information about Mercury, as well as pictures and videos that show its physical appearance and how it reacts with certain chemicals. |
| Why_is_Mercury_liquid_at_room_temperature? Explores the question of why Mercury is liquid at room temperature. It also provides some links to other sites regarding this chemistry quandary. |
| Why_Worry_About_Mercury____Chemical_Properties Gives some chemical properties of mercury, as well as hazard precautions when dealing with mercury. |
| Wikipedia__Mercury Properties of the element, including its history, applications, and characteristics. |
| Radiochemistry_of_Mercury Full text of the monograph by Josef Roesmer (Westinghouse Astronuclear Laboratory, Pittsburgh, Pennsylvania). [PDF] (September, 1970) |
| Apsidium__Bohrium Basic information and atomic structure. |
| Berkeley_National_Laboratory__Bohrium An article about an effort to determine the volatility of this element. |
| Borhium Historic information. |
| ChemicalElements_com__Bohrium Basic information, atomic structure, and isotopes. |
| EnvironmentalChemistry_com__Bohrium Atomic structure, chemical and physical properties, and isotopes. |
| It\'s_Elemental__Bohrium Basic physical and historical information. |
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page ![[Bohr Model of Technetium]](http://www.chemicalelements.com/elements/tc.html/../bohr/b0043.gif)
Number of Energy Levels: 5First Energy Level: 2Second Energy Level: 8Third Energy Level: 18Fourth Energy Level: 14Fifth Energy Level: 1IsotopesIsotopeHalf LifeTc-9520.0 hoursTc-95m61.0 daysTc-964.28 daysTc-96m51.5 minutesTc-972600000 yearsTc-97m90.0 daysTc-984200000 yearsTc-992.13E5 yearsTc-99m6.0 hoursTc-10014.2 minutesFactsDate of Discovery: 1937Discoverer: Carlo PerrierName Origin: From the Greek word technêtos (artificial)Uses: Tc-99m is used for radioactive tracing in medicineObtained From: Man-madeRelated LinksI currently do not know of any links for Technetium. If you do, please let me knowMLA Format for Citing This PageBentor, Yinon. Chemical Element.com - Technetium. <http://www.chemicalelements.com/elements/tc.html>. For more information about citing online sources, please visit the MLA's Website. This page was created by Yinon Bentor. Use of this web site is restricted by this site's license agreement. Copyright © 1996-2006 Yinon Bentor. All Rights Reserved. 