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Lawrencium (Unniltrium, Unt, eka-Lutetium) is a radioactive synthetic element in the periodic table that has the symbol Lr and atomic number 103. Its most stable isotope is 262Lr, with a half-life of approximately 4 hours. Lawrencium is synthesized from californium and has no known uses.
Notable characteristics
The appearance of this element is unknown, however it is most likely silvery-white or gray and metallic. If sufficient amounts of lawrencium were produced, it would pose a radiation hazard. Very little is known about the chemical properties of this element but some preliminary work on a few atoms has indicated that it behaves similarly to the actinides.
Element 103 is a d-block element analogous to lutetium and therefore is increasingly being placed with the other d-block elements in the transition metal chemical series, but it is still most often grouped with the actinides in the periodic table.
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Periodic Table of Videos http://ow.ly/KWDx Liked clip on Lawrencium mentioning the LHC -> centripetal force makes the world go round!
thispersonjay (jay morris) Fri, 11 Dec 2009 14:20:47 -0000
Periodic Table of Videos http://ow.ly/KWDx Liked clip on Lawrencium mentioning the LHC -> centripetal force makes the world go round!
Periodic Table of Videos: http://ow.ly/KWDx Liked the clip on Lawrencium and the connection with the LHC
thispersonjay (jay morris) Fri, 11 Dec 2009 14:16:06 -0000
Periodic Table of Videos: http://ow.ly/KWDx Liked the clip on Lawrencium and the connection with the LHC
ChemGlobe: Lawrencium - Electronic and thermal data along with an isotope table.
Meta Description: [ The chemical element [Lr] - Lawrencium - Datasheet ]
ChemicalElements.com: Lawrencium - Basic information, atomic structure, and isotopes.
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EnvironmentalChemistry.com: Lawrencium - Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Lawrencium - Basic physical and historical information.
Meta Description: [ The Element Lawrencium - Basic Physical and Historical Information ]
LANL: Lawrencium - Basic information, history, and properties.
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Lawrencium - Data tables and historic information.
Lenntech: Lawrencium - Physical data and chemical properties.
Meta Description: [ chemical properties, health and environmental effects of lawrencium ]
Visual Elements: Lawrencium - General and physical information, and key isotopes.
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WebElements: Lawrencium - Information on history and properties.
Meta Description: [ This WebElements periodic table page contains key information for the element lawrencium ]
Wikipedia: Lawrencium - Characteristics and history of the element.
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