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RUTHENIUM, Ru

TOP LEFT IN Pt’s GROUP

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Ru—top left in Pt’s group—so lustrous, hard, and rare,

GROUP 8 TRANSITION METAL

Ruthenium is a hard and lustrous transition metal. It’s also one of the rarest metals on the planet (it’s only the 74th most abundant element in Earth’s crust). Its properties are similar to its near-neighbors rhodium (Rh), palladium (Pd), osmium ...

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