The Element Cerium

Cerium is the most abundant of the rare earth elements and fund in number of minerals including allanite, monazite and bastnasite. For extracting Cerium, a process called ion exchange is used which uses monazite sands as the source of Cerium.

Cerium has a wide application across various industries. In the process of making stainless steel, Cerium is used as a precipitation hardening agent. Cerium is also used for alloying tungsten electrodes for gas tungsten arc welding. In glass manufacturing, this element is used both as a component and as a decolorizer which makes the production of industrial glass more effective.

 


Atomic Number & Chemical Properties


Element Basics:

Chemical Symbol: Ce
Atomic Number: 58
Atomic Weight: 140.115
Element Classification: Rare Earth Element (Lanthanide Series)
Discovered By: W. von Hisinger, J. Berzelius, M. Klaproth
Date of Discovery: 1803 (Sweden/Germany)
Origin of Name: Named after the asteroid, Ceres, discovered two years before the element.

How to Recognize it at a Party:

Malleable, ductile, iron-gray metal

Seriously Atomic Information:

Density (g/cc): 6.757
Melting Point (°K): 1072
Boiling Point (°K): 3699
Atomic Radius (pm): 181
Atomic Volume (cc/mol): 21.0
Covalent Radius (pm): 165
Ionic Radius: 92 (+4e) 103.4 (+3e)
Pauling Negativity Number: 1.12
First Ionizing Energy (kJ/mol): 540.1
Oxidation States: 4, 3
Electronic Configuration: [Xe] 4f1 5d1 6s2

Getting Intimate with Cerium:

Lattice Structure: Face-Centered Cubic (FCC)
Lattice Constant (Å): 5.160
Lattice C/A Ratio: n/a
Specific Heat (@20°C J/g mol): 0.205
Fusion Heat (kJ/mol): 5.2
Evaporation Heat (kJ/mol): 398
Thermal Conductivity (@25°C W/m K):
Debye Temperature (°K): n/a


Society's Questions About Cerium:

Have you ever wondered what everyone else in the world thinks about Cerium? Is anyone else looking for it too? If so, why? What do they want?

The following list shows the most common online questions about the element Cerium. Are your questions the same or different from everyone else's?

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