What is Radon?

Radon, the eighty-sixth element on the periodic table, is a colorless, radioactive noble gas. It's sneaky and a hidden hazard.

Atomic Number: 86

Symbol: Rn

Atomic Mass: [222] u (most stable isotope)

Category: Noble Gas

State at Room Temperature: Gas

Discovered By: Friedrich Ernst Dorn (1900)

⚛️ Atomic Structure of Radon

Radon has eighty-six protons, one hundred thirty-six neutrons (in its most stable isotope, Radon-222), and eighty-six electrons, with eight in its outer shell.

  • 🟢 Protons: 86
  • 🔴 Neutrons: 136 (Most stable isotope, Radon-222)
  • 🟡 Electrons: 86

💡 Did you know? Radon glows under UV light due to its radioactivity!

🔬 Radon Properties

Radon is inert, radioactive, and odorless. It liquefies at -61.8°C (-79.2°F), is dense for a gas, and emits alpha particles.

🧪 How Was Radon Discovered?

In 1900, German physicist Friedrich Ernst Dorn detected Radon as a gas emitted from radium, initially calling it "radium emanation."

⚡ Uses of Radon

  • 🩺 Medicine: Early cancer treatments.
  • 🔬 Research: Radiation studies.
  • 🌍 Detection: Earthquake prediction.

💡 Fun Facts About Radon

  • 🌟 Glows under UV.
  • 🏠 Home hazard.
  • ⏳ Half-life of 3.8 days.
  • ⚖️ Heaviest gas.

⚠️ Safety & Precautions

Radon is radioactive and a lung cancer risk. Ventilate homes, test levels, and avoid prolonged exposure.

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