What is Oganesson?

Oganesson, the one hundred-eighteenth element on the periodic table, is a synthetic, radioactive noble gas and the heaviest known element, marking the end of the periodic table as we know it.

Atomic Number: 118

Symbol: Og

Atomic Mass: [294] u (most stable isotope)

Category: Noble Gas

State at Room Temperature: Gas (predicted)

Discovered By: Yuri Oganessian et al. (JINR, Russia, 2002)

⚛️ Atomic Structure of Oganesson

Oganesson has one hundred eighteen protons, one hundred seventy-six neutrons (in its most stable isotope, Oganesson-294), and one hundred eighteen electrons, with eight in its outer shell.

  • 🟢 Protons: 118
  • 🔴 Neutrons: 176 (Most stable isotope, Oganesson-294)
  • 🟡 Electrons: 118

💡 Did you know? Oganesson might not behave like a typical noble gas due to relativistic effects from its massive nucleus!

🔬 Oganesson Properties

Oganesson is radioactive and predicted to be a gas at room temperature, though its properties are uncertain. It emits alpha radiation, and its melting point is unknown.

🧪 How Was Oganesson Discovered?

In 2002, Yuri Oganessian and a team at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia, with collaboration from Lawrence Livermore National Laboratory, synthesized Oganesson by bombarding californium with calcium ions.

⚡ Uses of Oganesson

  • 🔬 Research: Studying superheavy element properties.
  • ⚡ Synthesis: Exploring the limits of the periodic table.

💡 Fun Facts About Oganesson

  • 👨‍🔬 Named after Yuri Oganessian.
  • ⏳ Half-life of 0.89 milliseconds.
  • 🌟 Heaviest element known.
  • 🏭 Fully synthetic.

⚠️ Safety & Precautions

Oganesson is radioactive and a radiation hazard. It's only produced in trace amounts in controlled labs.

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