What is Palladium?

Palladium, the forty-sixth element on the periodic table, is a lustrous, silvery-white transition metal in the platinum group. It's a champion of catalysis and jewelry.

Atomic Number: 46

Symbol: Pd

Atomic Mass: 106.42 u

Category: Transition Metal (Platinum Group)

State at Room Temperature: Solid

Discovered By: William Hyde Wollaston (1802)

⚛️ Atomic Structure of Palladium

Palladium has forty-six protons, sixty neutrons (in its most common isotope, Palladium-106), and forty-six electrons, with ten in its outer shell.

  • 🟢 Protons: 46
  • 🔴 Neutrons: 60 (Most common isotope, Palladium-106)
  • 🟡 Electrons: 46

💡 Did you know? Palladium can absorb up to 900 times its volume in hydrogen!

🔬 Palladium Properties

Palladium is soft, ductile, and resistant to corrosion. It melts at 1555°C (2831°F) and excels at absorbing hydrogen gas.

🧪 How Was Palladium Discovered?

In 1802, English chemist William Hyde Wollaston isolated Palladium from platinum ore, naming it after the asteroid Pallas, discovered that year.

⚡ Uses of Palladium

  • 🚗 Catalysis: Catalytic converters for cleaner emissions.
  • 💍 Jewelry: White gold alloys and pure palladium pieces.
  • 💾 Electronics: Capacitors and connectors.
  • ⚗️ Chemistry: Hydrogen storage and purification.

💡 Fun Facts About Palladium

  • 🪐 Named after asteroid Pallas, linked to Greek mythology.
  • 🌍 More abundant than platinum but still rare.
  • 🧽 Acts like a sponge for hydrogen gas.
  • 💰 Price often exceeds gold due to demand.

⚠️ Safety & Precautions

Palladium is non-toxic in solid form, but dust or compounds can irritate skin and lungs. Handle with gloves and ventilation when powdered.

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