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STRONTIUM (38Sr87.62)

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Element Description

Chemically similar to calcium, strontium is softer and decomposes in water on contact. Strontium is silvery-white but, when exposed to air, it rapidly becomes yellow and forms an oxide film. In nature, it is found primarily as celestite (SrSO<sub>4</sub> and strontianite (SrCO<sub>3</sub>).

Property Name Property Value Property Name Property Value
Atomic Code (38Sr87.62) Atomic Volume 33.7W/D
CAS # 7440-24-6 First Ionization Energy 131K-cal/g-mole
Electronegativity 1.0Pauling's
Melting Point 777°C Covalent Radius 1.91Angstroms
Boiling Point 1382°C Mohs Hardness @ 20°C 1.8
Density 2.64g/cm3 Electrical Resistivity 22.76µΩ-cm
Specific Heat @ 25°C 0.176cal/g°C Crystal Structure Cubic, face centered
Heat of Fusion 2.1cal/g-atom Lattice Constant 6.05
Heat of Vaporization 42.3cal/g

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