What is Tellurium?

Tellurium, the fifty-second element on the periodic table, is a brittle, silvery metalloid. It's rare on Earth but vital in solar tech and alloys.

Atomic Number: 52

Symbol: Te

Atomic Mass: 127.60 u

Category: Metalloid

State at Room Temperature: Solid

Discovered By: Franz-Joseph Müller von Reichenstein (1782)

⚛️ Atomic Structure of Tellurium

Tellurium has fifty-two protons, seventy-six neutrons (in its most common isotope, Tellurium-128), and fifty-two electrons, with six in its outer shell.

  • 🟢 Protons: 52
  • 🔴 Neutrons: 76 (Most common isotope, Tellurium-128)
  • 🟡 Electrons: 52

💡 Did you know? Tellurium exposure gives you garlic-like breath!

🔬 Tellurium Properties

Tellurium is brittle, semiconducting, and mildly toxic. It melts at 449.5°C (841.1°F) and has a shiny, crystalline appearance.

🧪 How Was Tellurium Discovered?

In 1782, Austrian mineralogist Franz-Joseph Müller von Reichenstein identified Tellurium in gold ore, naming it after Latin "tellus" (Earth).

⚡ Uses of Tellurium

  • ☀️ Solar Cells: Cadmium telluride in photovoltaics.
  • 🔩 Alloys: Improves steel and copper durability.
  • 💾 Tech: Phase-change memory in electronics.
  • 🎨 Pigments: Rare color applications.

💡 Fun Facts About Tellurium

  • 🧄 Causes garlic breath when handled.
  • 🌍 Named after Earth ("tellus").
  • 🌌 More common in the universe than Earth.
  • 🔬 Often found with gold deposits.

⚠️ Safety & Precautions

Tellurium is mildly toxic, causing nausea and garlic odor if absorbed. Handle with gloves, ventilation, and avoid inhalation or ingestion.

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