What is Strontium?

Strontium, the thirty-eighth element on the periodic table, is a silvery-white alkaline earth metal. It's reactive and known for its bright red glow in fireworks.

Atomic Number: 38

Symbol: Sr

Atomic Mass: 87.62 u

Category: Alkaline Earth Metal

State at Room Temperature: Solid

Discovered By: Adair Crawford (1790), isolated by Humphry Davy (1808)

⚛️ Atomic Structure of Strontium

Strontium has thirty-eight protons, fifty neutrons (in its most common isotope, Strontium-88), and thirty-eight electrons, with two in its outer shell.

  • 🟢 Protons: 38
  • 🔴 Neutrons: 50 (Most common isotope, Strontium-88)
  • 🟡 Electrons: 38

💡 Did you know? Strontium-90, a radioactive isotope, is used in nuclear research!

🔬 Strontium Properties

Strontium is soft, reactive, and oxidizes quickly in air. It reacts with water, releasing hydrogen gas.

🧪 How Was Strontium Discovered?

In 1790, Scottish physician Adair Crawford identified Strontium in a mineral sample. It was later isolated by Humphry Davy in 1808 via electrolysis.

⚡ Uses of Strontium

  • 🎆 Fireworks: Produces a bright red color.
  • 🚨 Flares: Used in pyrotechnics and signals.
  • 🦷 Toothpaste: Strontium chloride for sensitive teeth.

💡 Fun Facts About Strontium

  • 🏞️ Named after Strontian, a Scottish village.
  • ☢️ Strontium-90 is a byproduct of nuclear fission.
  • 🌍 Found in minerals like celestine and strontianite.

⚠️ Safety & Precautions

Strontium is reactive and can ignite in powder form. Handle with care and avoid inhalation of dust.

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