Palladium: Properties, Uses, and History

The video discusses the Platinum Group metals, focusing on Palladium. It covers Palladium's discovery by William Hyde Wollaston, its properties, and its uses in various fields such as medicine, catalysis, jewelry, and photography. Palladium is highlighted for its catalytic properties, use in dental amalgams, and as an alloy in white gold. The video also touches on Palladium's material characteristics, including its brittleness and discoloration at high temperatures.

Which of the following metals is the lightest and has the lowest melting point in the Platinum Group?

• Iridium

• Rhodium

• Platinum

• Palladium

Who discovered Palladium and what was the initial criticism about its discovery?

• William Hyde Wollaston; it was thought to be an alloy of platinum and mercury

• Richard Chenevix; it was thought to be a new form of platinum

• Marie Curie; it was thought to be a radioactive element

• Dmitri Mendeleev; it was thought to be a non-metal

What was Palladium chloride once used for in medicine?

• To cure the common cold

• As an antibiotic

• To treat tuberculosis

• As a pain reliever

In what form is Palladium used in dental applications?

• In its chloride form

• As a dental amalgam

• Alloyed with gold

• As a pure metal

Why is Palladium used in white gold jewelry?

• It is cheaper than gold

• It has a natural white color and doesn't need rhodium plating

• It is more durable than platinum

• It is resistant to all forms of corrosion