What is Mercury?

Mercury, the eightieth element on the periodic table, is a shiny, silvery transition metal. It's the only metal that's liquid at room temperature.

Atomic Number: 80

Symbol: Hg

Atomic Mass: 200.59 u

Category: Transition Metal

State at Room Temperature: Liquid

Discovered By: Known since antiquity

⚛️ Atomic Structure of Mercury

Mercury has eighty protons, one hundred twenty-one neutrons (in its most common isotope, Mercury-202), and eighty electrons, with twelve in its outer shell.

  • 🟢 Protons: 80
  • 🔴 Neutrons: 121 (Most common isotope, Mercury-202)
  • 🟡 Electrons: 80

💡 Did you know? Mercury's liquid form inspired its name from the swift Roman god!

🔬 Mercury Properties

Mercury is dense, conductive, and flows freely. It melts at -38.83°C (-37.89°F), boils at 356.7°C (674°F), and resists corrosion but forms toxic vapors.

🧪 How Was Mercury Discovered?

Mercury has been known since antiquity, used by ancient Chinese and Egyptians. Its symbol "Hg" comes from "hydrargyrum," Latin for "liquid silver," and it's named after the Roman god Mercury.

⚡ Uses of Mercury

  • 🌡️ Thermometers: Temperature gauges.
  • 💡 Lights: Fluorescent bulbs.
  • 🔋 Batteries: Small power cells.
  • 🔬 Dentistry: Amalgam fillings.

💡 Fun Facts About Mercury

  • 💧 Liquid metal.
  • 🏃 Named for speed.
  • 🌌 On planet Mercury.
  • ☠️ Toxic vapors.

⚠️ Safety & Precautions

Mercury is highly toxic and volatile. Avoid skin contact, inhalation, or spills; use gloves, ventilate areas, and store in sealed containers.

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