⚛️ Atomic Structure of Thulium
Thulium has sixty-nine protons, one hundred neutrons (in its only stable isotope, Thulium-169), and sixty-nine electrons, with thirteen in its outer shell.
- 🟢 Protons: 69
- 🔴 Neutrons: 100 (Stable isotope, Thulium-169)
- 🟡 Electrons: 69
💡 Did you know? Thulium is the rarest stable lanthanide on Earth!
🔬 Thulium Properties
Thulium is soft, ductile, and reactive. It melts at 1545°C (2813°F), has a faint bluish tint, and oxidizes in air.
🧪 How Was Thulium Discovered?
In 1879, Swedish chemist Per Teodor Cleve isolated Thulium from erbium oxide, naming it after Thule, an ancient name for Scandinavia.
⚡ Uses of Thulium
- 🔬 Lasers: Tm:YAG lasers for surgery.
- 🩺 Medicine: Portable X-ray sources.
- 💡 Doping: Enhances phosphors.
- 🔍 Research: Magnetic studies.
💡 Fun Facts About Thulium
- 🌍 Rarest stable lanthanide.
- 🏞️ Named for Thule.
- 🔦 Powers small X-rays.
- 🔵 Slightly bluish.
⚠️ Safety & Precautions
Thulium is reactive and can ignite in powder form. It's mildly toxic; handle with gloves, avoid inhalation, and store in inert conditions.