Tabla

Electronic ConfigurationXe 6s2 4f1 5d1

Melting Point799°C

Boiling Point3426°C

Density6.757g cm⁻³

Description

Silvery metallic element, belongs to the lanthanoids. Four natural isotopes exist, and fifteen radioactive isotopes have been identified. Used in some rare-earth alloys. The oxidized form is used in the glass industry. Discovered by Martin .H. Klaproth in 1803.

Covalent Radius163pm

Double137pm

Triple131pm

Ionisation Energies

Oxidation States0, +3, +4

Uses

Its oxides are used in the optics and glass-making industries. Its salts are used in the photography and textile industry. Used in high-intensity Carbon lamps and as alloying agents in special metals.

Electron Affinity62.715kJ mol⁻¹

Electronegativity1.12PAULING

Atomic Volume21cm³ mol⁻¹

Atomic Radius181pm

Van Der Waals Radius242pm

Sources

Most abundant rare earth metal. Found in many minerals like monazite sand [Ce(PO₄)].

Discovery

Discovered in 1803 by W. von Hisinger, J. Berzelius, M. Klaproth in Sweden/Germany

Name Origin

Named after the asteroid, Ceres, discovered two years before the element.

CAS7440-45-1

Crust Abundance66.5mg kg⁻¹

Sea Abundance1.20x10⁻⁶mg dm⁻³

Enthalpy of Vapourisation 398kJ mol⁻¹

Enthalpy of Fusion5.2kJ mol⁻¹

Enthalpy of Formation420.1kJ mol⁻¹

Specific Heat - 20°C0.205J (g ⋅ K)⁻¹

Thermal Conductivity11.3W (m ⋅ K)⁻¹

Isotope	Abundance	Half Life
136Ce	0.186%	-
138Ce	0.251%	-
140Ce	88.45%	-
142Ce	11.11%	-

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