Multiple choice

Which category do Ruthium (Ru), Rhodium (Rd) and Palladium (Pd) belong to?

  1. Chalcophile

  2. Lithophiles

  3. Atmophiles

  4. Siderophiles
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Siderophiles exhibit a weak affinity to both oxygen and sulphur. Siderophiles have an affinity for iron and a distinguishing characteristic of siderophiles, is that they exhibit high solubility, in molten iron. Siderophile elements generally have a low reactivity, and exhibit an affinity, to form metallic bonds. As a result, siderophiles are most often found in their native state. Not abundant in the core or mantle, most siderophiles are thought to be richest at the Earth's core. Platinum (Pt) group metals, including Ruthium (Ru), Rhodium (Rd), Palladium (Pd), Osmium (Os) and Iridium (Ir) exhibit a strong siderophile tendency.

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