| Wikipedia__Calcium Properties of the element, including its history, applications, and characteristics. |
| ChemicalElements_com__Tantalum Basic information, atomic structure, and isotopes. |
| EnvironmentalChemistry_com__Tantalum Atomic structure, chemical and physical properties, and table of nuclides. |
| It\'s_Elemental__Tantalum Basic physical and historical information. |
| LANL__Tantalum History, production, properties, and uses. |
| Lenntech__Tantalum Physical data, chemical properties, health and environmental effects. |
| Tantalum Data tables and historic information. |
| Visual_Elements__Tantalum Discovery, uses, physical information, and key isotopes. |
| WebElements__Tantalum Extensive information on history, uses, occurrence, compounds, and properties. |
| Wikipedia__Tantalum Properties of the element, including its history, applications, and characteristics. |
| ChemicalElements__Seaborgium Basic information. |
| EnvironmentalChemistry_com__Seaborgium Atomic structure and table of nuclides. |
| It\'s_Elemental__Seaborgium Basic physical and historical information. |
| LANL__Seaborgium Basic information and history. |
| Lenntech__Seaborgium Physical data and chemical properties. |
| Seaborgium Historic information. |
| Visual_Elements__Seaborgium Physical information, ionisation energies, and key isotopes. |
| WebElements__Seaborgium Information on history, isolation, and properties. |
| Wikipedia__Seaborgium History and basic information on the element. |
| CAC-2004 9th Conference on Chemometrics in Analytical Chemistry: "New Challenges for a Maturing Science". Lisbon, Portugal; 20--23 September 2004. |
| COCHEM\'03 Nonlinear phenomena in computational chemical physics. Barcelona, Spain; 9--14 June 2003. |
| DIMACS_Workshop_on_Discrete_Mathematical_Chemistry DIMACS, Rutgers University; 23--25 March 1998. Proceedings can be ordered. |
| Effective_Theories_for_Materials_and_Macromolecules Workshop in research session on Mathematics of Materials and Macromolecules, IMA, Minnesota, USA; 8--11 June 2005. |
| First_Indo-US_Workshop_on_Mathematical_Chemistry With Applications in Molecular Design and Hazard Assessment of Chemicals. Visva-Bharati University, Santiniketan, West Bengal; 9--13 January 1998. |
| MaThCryst Crystallography at the start of the 21st century: Mathematical and Symmetry Aspects. A satellite meeting of the XXII European Crystallographic Meeting (ECM-22). Budapest, Hungary; 24--26 August 200 |
| Mathematics_in_Chemical_Kinetics_and_Engineering_(MACKIE-2002) An international workshop to be held in Ghent, Belgium; 5--8 May 2002. |
| Second_Indo-US_Workshop_on_Mathematical_Chemistry With Applications to Drug Discovery, Environmental Toxicology, Cheminformatics and Bioinformatics. Duluth, Minnesota, 30 May -- 3 June 2000. |
| Third_Indo-US_Workshop With applications to Drug Discovery, Environmental Toxicology, Cheminformatics and Bioinformatics. New Delhi, India. Duluth, Minnesota, USA; 2--7 August 2003. |
| ChemicalElements_com__Titanium Basic information, atomic structure, and isotopes. |
| EnvironmentalChemistry_com__Titanium Atomic structure, chemical and physical properties, and table of nuclides. |
| It\'s_Elemental__Titanium Basic physical and historical information. |
| LANL__Titanium History, sources, uses, and properties. |
| Lenntech__Titanium Physical data, chemical properties, and health effects. |
| Titanium Data tables and historic information. |
| USGS_Minerals_Information__Titanium Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). |
| Visual_Elements__Titanium Image, general and physical information, source, uses, key isotopes, and ionisation energies. |
| WebElements__Titanium Extensive information on history, uses, occurrence, compounds, and properties of the element. |
| Wikipedia__Titanium Properties of the element, including its history, applications, and characteristics. |
| Radiochemistry_of_Titanium Full text of the monograph by Vincent J. Landis (San Diego State University, San Diego, California). [PDF] (January, 1971) |
| ChemicalElements_com__Potassium Basic information, atomic structure, and isotopes. |
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page ![[Bohr Model of Calcium]](http://www.chemicalelements.com/elements/ca.html/../bohr/b0020.gif)
Number of Energy Levels: 4First Energy Level: 2Second Energy Level: 8Third Energy Level: 8Fourth Energy Level: 2IsotopesIsotopeHalf LifeCa-40StableCa-41103000.0 yearsCa-42StableCa-43StableCa-44StableCa-45162.7 daysCa-46StableCa-474.5 daysCa-48StableCa-498.7 minutesFactsDate of Discovery: 1808Discoverer: Sir Humphrey DavyName Origin: From the latin word calcis (lime)Uses: life forms for bones and shellsObtained From: chalk, limestone, marble. 3.5% of crustRelated LinksNote: The external links below are not a part of this site and their content is not the responsibility of this siteCalciteInformation about calcium carbonateHealthworld Online - CalciumContains an "Introduction to Tungsten", among other thingsIf you know of any other links for Calcium, please let me knowMLA Format for Citing This PageBentor, Yinon. Chemical Element.com - Calcium. <http://www.chemicalelements.com/elements/ca.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. 