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CERIUM (58Ce140.115)

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Element Description

Cerium is an iron-gray, soft, ductile, and malleable metal. It is the most abundant of the rare earth elements. It is a reactive metal, rapidly oxidizing in air forming a superficial oxide coating. The metal reacts rapidly with water, readliy dissolves in mineral acids and will react with most nonmetals on heating. Cerium has many uses, including as an alloying agent with iron and other metals.

Property Name Property Value Property Name Property Value
Atomic Code (58Ce140.115) Electronegativity 1.1Pauling's
CAS # 7440-45-1 Covalent Radius 1.65Angstroms
Vickers Hardness 24
Melting Point 798°C Electrical Resistivity @ 298°C 85.4µΩ-cm
Boiling Point 3433°C Crystal Structure Cubic, face centered
Density 6.77g/cm3 Poisson Ratio 0.248
Themal Conductivity 0.026cal/cm2/s/°C Young's Modulus 6.3x106psi
Specific Heat @ 25°C 0.042cal/g°C Magnetic Susceptibility 2,430x10-6emu/mole
Heat of Fusion 1.2k-cal/g-atom Tensile Strength 15,000psi
Heat of Vaporization 95k-cal/g-atom Yield Strength 13,200psi
Atomic Volume 21W/D Standard Electrode Potential +2.335volts
First Ionization Energy 159K-cal/g-mole

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