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Lawrencium information, including Technical Data, Safety Data and its high purity propertiesresearch, applications and other useful facts are discussed below. Scientific facts such as the atomic structure,ionization energyabundance on Earthconductivity and thermal properties are included. 

Lawrencium is a Block D, Group 3, Period 7 element. The number of electrons in each of Lawrencium‘s shells is 2, 8, 18, 32, 32, 8, 3, (?) and its electronic configuration is [Rn] 5f14 6d1 7s2. In its elemental form lawrencium‘s CAS number is 22537-19-5. The lawrencium atom has a radius of and it‘s Van der Waals radius is Lawrencium is radioactive and therefore considered toxic. 

Lawrencium was discovered by Albert Ghiorso, Torbjorn Sikkeland, Almon E. Larsh and Robert M. Latimer  in 1961. Lawrencium was named after Earnest O. Lawrence the inventor of the cyclotron particle accelerator. Until 1963, the symbol for Lawrencium was Lw. The International Union of Pure and Applied Chemistry (IUPAC) changed the symbol from Lw to Lr in August, 1997.

Lawrencium Safety Data. The safety data for lawrencium metalnanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Lawrencium compounds have no biological role. 

Ionization Energy. The ionization energy for lawrencium (the least required energy to release a single electron from the atom in it‘s ground state in the gas phase) is stated in the following table:
1st Ionization Energy - kJ mol-1
2nd Ionization Energy - kJ mol-1
3rd Ionization Energy - kJ mol-1

Conductivity. As to lawrencium‘s electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @ 20 ?C is - ?Ocm and its electronegativities (or its ability to draw electrons relative to other elements) is 1.3. The thermal conductivity of lawrencium is - W m-1 K-1. 

Thermal Properties of Lawrencium. The melting point and boiling point for lawrencium are statedbelow. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
Heat of Fusion - kJ mol-1
Heat of Vaporization - kJ mol-1
Heat of Atomization 308 kJ mol-1

Formula Atomic Number Molecular Weight Electronegativity (Pauling) Density Melting Point Boiling Point Vanderwaals radius Ionic radius Energy of first ionization
Lr 103 (262) g.mol -1 - - g/L 1627? °C -108.12 °C .200 nm - pm - kJ.mol-1