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Atomic
Number:
Atomic Weight:
Element Type:
Crystal
Structure:
Melting Point:
Boiling Point:
Critical
Temp:
Atomic Radius:
Covalent Radius:
Electronegativity:
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38
87.62
Alkali Earth Metal
Cubic Face Centered
777.0°C = 1430.6°F = 1050.15 K
1382.0°C = 2519.6°F = 1655.15 K
°C
= °F = K
2.45 Å (Å = Angstrom = 10-10 m)
1.91Å
0.95 |
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Discovery
(Strontian, town in Scotland) Isolated by Davey by electrolysis
in 1808; however, AdairCrawford in 1790 recognized a new
mineral (strontianite) as differing from other bariumminerals.
Uses
Strontium-90 is used in Systems for Nuclear Auxilliary
Power (SNAP) devices. Strontium is used in producing glass
for color television picture tubes. It is also used to produce
ferrite magnets and to refine zinc. Strontium titanate is
very soft but has an extremely high refractive index and
an optical dispersion greater than that of diamond.
Isotopes
There are 20 known isotopes of strontium, 4 stable and
16 unstable. Natural strontium is a mixture of the 4 stable
isotopes.
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