Periodic Table of the Elements: Palladium


Name: Palladium
Symbol: Pd
Atomic Number: 46
Atomic Mass: 106.4
Atomic Volume: 8.84 cc/mol
Discovered By: Wollaston
Discovery Date: 1803
Origin of Name: Palladium - named after the asteroid Pallas, discovered about the same time, (Greek) Pallas, goddess of wisdom
Toxicity: Apparently not toxic.
Summary: A member of the platinum group. Found free in nature alloyed with platinum, and in ores. Palladium has the ability to absorb 900 times its volume of hydrogen gas (H 2 ). This effect was thought to be the basis of cold fusion. Used as a catalyst, and when alloyed with gold, to make white gold for jewelry.

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