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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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R
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Ruthenium
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1992-09-02
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Element, symbol Ru, atomic number 44,
relative atomic mass 101.06. It is a hard
blue-white metal, a member of the platinum
group, and is used to harden platinum and
palladium for use in electrical contacts. It
is also a versatile catalyst.