What is Samarium?

Samarium, the sixty-second element on the periodic table, is a hard, silvery lanthanide. It's a powerhouse in magnets and a helper in nuclear tech.

Atomic Number: 62

Symbol: Sm

Atomic Mass: 150.36 u

Category: Lanthanide

State at Room Temperature: Solid

Discovered By: Lecoq de Boisbaudran (1879)

⚛️ Atomic Structure of Samarium

Samarium has sixty-two protons, eighty-eight neutrons (in its most common isotope, Samarium-150), and sixty-two electrons, with six in its outer shell.

  • 🟢 Protons: 62
  • 🔴 Neutrons: 88 (Most common isotope, Samarium-150)
  • 🟡 Electrons: 62

💡 Did you know? Samarium-cobalt magnets resist heat better than neodymium ones!

🔬 Samarium Properties

Samarium is hard, brittle, and reactive. It melts at 1072°C (1962°F) and slowly oxidizes in air, forming a grayish coating.

🧪 How Was Samarium Discovered?

In 1879, French chemist Lecoq de Boisbaudran isolated Samarium from samarskite ore via spectroscopy, naming it after the mineral.

⚡ Uses of Samarium

  • 🧲 Magnets: Samarium-cobalt for high-temp use.
  • ☢️ Nuclear: Neutron absorber in reactors.
  • 🩺 Medicine: Samarium-153 for cancer treatment.
  • 🔬 Catalysts: In chemical synthesis.

💡 Fun Facts About Samarium

  • 💪 Heat-resistant magnets.
  • 🌍 Named after samarskite mineral.
  • ☢️ Absorbs neutrons like a sponge.
  • 🩻 Treats bone cancer.

⚠️ Safety & Precautions

Samarium is reactive and can ignite as powder. It's mildly toxic; handle with gloves, avoid inhalation, and store in inert conditions.

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