General | States | Energies | Oxidation & Electrons |Appearance & Characteristics
Reactions | Other Forms |Radius | Conductivity | Abundance
Encyclopedia Britannica articles


Name Lawrencium Symbol Lr
atomic number 103 Atomic weight (260)
Density @ 293 K ? Atomic volume ?
Group Rare Earth, Actinides discovered 1961


state (s, l, g)
melting point K boiling point K
Heat of fusion ? Heat of vaporization ?
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1st ionization energy kJ/mole electronegativity
2nd ionization energy kJ/mole electron affinity kJ/mole
3rd ionization energy kJ/mole Specific heat ?
heat atomization kJ/mole atoms

Oxidation & Electrons

Shells 2,8,18,32,32,9,2 electron configuration [Rn] 5f14 6d1 7s2
minimum oxidation number 0 maximum oxidation number 3
min. common oxidation no. 0 max. common oxidation no. 3
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Appearance & Characteristics

structure color
uses toxicity
hardness mohs characteristics Radioactive,few atms made


reaction with air reaction with 6M HCl
reaction with 6M HCl reaction with 15M HNO3
reaction with 6M NaOH
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Other Forms

number of isotopes 0 hydride(s)
oxide(s) chloride(s)


ionic radius (2- ion) pm ionic radius (1- ion) pm
atomic radius pm ionic radius (1+ ion) pm
ionic radius (2+ ion) pm ionic radius (3+ ion) pm
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thermal conductivity J/m-sec-deg electrical conductivity 1/mohm-cm
polarizability A^3


source Synthetic rel. abund. solar system log
abundance earth's crust log cost, pure $/100g
cost, bulk $/100g
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World Wide Web presentation of Chemicool Periodic Table is © Copyright 1996-99 by David D. Hsu. Some data were provided by and used with the permission of JCE Software and is owned and copyright by the Division of Chemical Education, Inc. Additional data were provided by Perkin-Elmer through Peter Lykos of IIT. The information may not be redistributed without the permission of David Hsu or JCE Software.