Tabla

Electronic ConfigurationXe 6s2 4f14 5d1

Melting Point1663°C

Boiling Point3395°C

Density9.8404g cm⁻³

Description

Silvery-white rare-earth metal which is relatively stable in air. It happens to be the most expensive rare-earth metal. Its found with almost all rare-earth metals, but is very difficult to separate from other elements. Least abundant of all natural elements. Used in metal alloys, and as a catalyst in various processes. There are two natural, stable isotopes, and seven radioisotopes, the most stable being ¹⁷⁴Lu with a half-life of 3.3 years. The separation of Lutetium from Ytterbium was described by Georges Urbain in 1907. It was discovered at approximately the same time by Carl Auer von Welsbach. The name comes from the Greek word lutetia which means Paris.

Covalent Radius162pm

Double131pm

Triple131pm

Ionisation Energies

Oxidation States0, +3

Uses

It has no practical applications.

Electron Affinity32.805kJ mol⁻¹

Proton Affinity992kJ mol⁻¹

Electronegativity1PAULING

Atomic Volume17.8cm³ mol⁻¹

Atomic Radius175pm

Van Der Waals Radius224pm

Sources

Found with Ytterbium in gadolinite and xenotime. Usually obtained from monazite sand which is ofter 50% rare earth by weight and 0.003% Lutetium.

Discovery

Discovered in 1907 by Georges Urbain in France

Name Origin

Named for the ancient name of Paris, Lutecia.

CAS7439-94-3

Crust Abundance0.8mg kg⁻¹

Sea Abundance1.50x10⁻⁷mg dm⁻³

Enthalpy of Vapourisation 414kJ mol⁻¹

Enthalpy of Formation427.6kJ mol⁻¹

Specific Heat - 20°C0.155J (g ⋅ K)⁻¹

Isotope	Abundance	Half Life
175Lu	97.4%	-
176Lu	2.599%	3.760x10¹⁰y
173Lu	-	-
174Lu	-	-

https://reuben.science

https://github.com/reubn/tabla

Using data from mendeleev.

MIT License Copyright (c) 2020 reubn Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. pb2bb3a9eb2b62a1fdf94