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Strontium (₃₈Sr^87.62)
[7440-24-6]

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Elemental Form


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 (SrSO₄ and strontianite (SrCO₃).
Melting Point	777°C	Boiling Point	1382°C
Density	2.64g/cm³	Specific Heat @ 25°C	0.176cal/g°C
Heat of Fusion	2.1cal/g-atom	Heat of Vaporization	42.3cal/g
Atomic Volume	33.7W/D	First Ionization Energy	131K-cal/g-mole
Electronegativity	1.0Pauling's	Covalent Radius	1.91Angstroms
Mohs Hardness @ 20°C	1.8	Electrical Resistivity	22.76µΩ-cm
Crystal Structure	Cubic, face centered	Lattice Constant	6.05