What is Nickel?

Nickel, the twenty-eighth element on the periodic table, is a silvery-white transition metal. It's tough, corrosion-resistant, and widely used in alloys and coins.

Atomic Number: 28

Symbol: Ni

Atomic Mass: 58.693 u

Category: Transition Metal

State at Room Temperature: Solid

Discovered By: Axel Fredrik Cronstedt (1751)

⚛️ Atomic Structure of Nickel

Nickel has twenty-eight protons, thirty neutrons (in its most common isotope, Nickel-58), and twenty-eight electrons, with ten in its outer shell.

  • 🟢 Protons: 28
  • 🔴 Neutrons: 30 (Most common isotope, Nickel-58)
  • 🟡 Electrons: 28

💡 Did you know? Nickel-63, a radioactive isotope, is used in nuclear batteries for long-term power!

🔬 Nickel Properties

Nickel is hard, ductile, and magnetic at room temperature (ferromagnetic). It resists corrosion and has a high melting point (1455°C / 2651°F).

🧪 How Was Nickel Discovered?

In 1751, Swedish mineralogist Axel Fredrik Cronstedt isolated Nickel from niccolite, identifying it as a distinct element after miners mistook it for copper.

⚡ Uses of Nickel

  • 🏗️ Steel: Stainless steel for appliances and construction.
  • 💰 Coins: Used in currency (e.g., U.S. nickel).
  • 🔋 Batteries: Nickel-metal hydride and lithium-ion batteries.
  • 🏭 Industry: Plating for corrosion resistance.

💡 Fun Facts About Nickel

  • 🌍 Fifth most abundant element in Earth's crust.
  • 🪐 Believed to form part of Earth's core.
  • 📜 Named from German "kupfernickel," meaning "devil's copper".
  • 🧲 Loses magnetism above 355°C (671°F).

⚠️ Safety & Precautions

Nickel is non-toxic in solid form, but prolonged skin contact can cause allergic reactions in some people. Nickel dust or fumes may irritate lungs.

🔬 Explore More Elements