12/27/12
Lawrencium (Lr) - Chemical properties, Health and Environmental effects
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Lawrencium - Lr
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Chemical properties of lawrencium - Health effects of lawrencium - Environmental effects of
lawrencium
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Aluminum
Americium
Atomic number
103
Argon
Atomic mass
(262) g.mol -1
Arsenic
Periodic table
Electronegativity according to Pauling
unknown
Calculators
Density
unknown
Melting point
unknown
Boiling point
unknown
Vanderwaals radius
unknown
Bohrium
Ionic radius
unknown
Bismuth
Isotopes
1
Electronic shell
[ Rn ] 5f14 6d 1 7s 2
Discovered by
Albert Ghiorso in 1961
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Lawrencium is the second transferium element with the most stable isotope 262 Lr having a half-life of 216 minutes. It's
chemical data are limited to its atomic number, its haf life and isotopes. Atomic weight of known its 11 isotopes range from
252 to 262. It is named after Ernest O. Lawrence, the inventor of the cyclotron, the research instrument with which
several new elements havve been first produced.
Cerium
Californium
Chlorine
Applications
Curium
The transferium elements have neither application nor economic role.
Cobalt
Lawrencium in the environment
The transferium elements do not exist in nature and they have very unstable nuclei, so they are quite hard to make and
detect.
Chromium
Cesium
Copper
Health effects of lawrencium
Lawrencium doesn’t occur naturally, it has not yet been found in the earth’s crust and it’s so unstable that any amount
formed would decompose to other elements very quickly. Therefore, there is no reason to consider its health hazards.
Dubnium
Darmstadtium
Environmental effects of lawrencium
Dysprosium
Due to its short half-life, there’s no reason for considering the effects of lawrencium in the environment.
Erbium
Einsteinium
Back to chart periodic elements.
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Lawrencium (Lr) - Chemical properties, Health and Environmental effects
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Seaborgium
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Samarium
Tin
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Strontium
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Lawrencium (Lr) - Chemical properties, Health and Environmental effects
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