Periodic table / Oganesson

Overview

Oganesson is IUPAC's name for the transactinide element with the atomic number 118 and element symbol Og. It is also known as eka-radon or element 118, and on the periodic table of the elements it is a p-block element and the last one of the 7th period. Oganesson is currently the only synthetic member of group 18.

Electron configuration

The electron configuration of Oganesson is *[Rn] 5f14 6d10 7s2 7p6, with electron shells of 2, 8, 18, 32, 32, 18, 8.

Physical and chemical properties

Oganesson is classified as a noble gas. It has an atomic mass of 294 and exists as a solid at standard conditions.

Real-world uses of Oganesson

As a noble gas, Oganesson is chemically inert and is primarily used in lighting, insulation, or specialized industrial and scientific applications.

Interesting facts about Oganesson

• Oganesson has the atomic number 118 and chemical symbol Og.
• It belongs to period 7, group 18 of the periodic table.
• Oganesson was discovered by Joint Institute for Nuclear Research.

Explore Oganesson interactively

Want to compare Oganesson with other elements or see it highlighted on the full table? Open the interactive periodic table and click on Og to explore properties, trends, and neighboring elements. You can also test your knowledge with our periodic table quiz game.