Oganesson (Og)

About Oganesson

Oganesson is a chemical element with the symbol Og and atomic number 118, meaning every atom has 118 protons in its nucleus. It is classed as Unknown and is a solid at room temperature (estimated, never measured directly because this element decays within seconds). Its atomic mass is about 294 atomic mass units (u).

On the periodic table, Oganesson sits in group 18, period 7, which determines how many electron shells it has and how it tends to react with other elements.

Uses of Oganesson

In daily life and industry, Oganesson is used for Research. These uses are closely tied to the typical properties of elements in the Unknown category.

Electron Structure of Oganesson

Using a simplified electron shell model (at most 2 electrons in the first shell, 8 in the second, 18 in the third, and so on), Oganesson has 7 electron shells, with an approximate arrangement of 2, 8, 18, 32, 32, 18, 8 electrons from the innermost shell to the outermost. This is a simplified learning model, not the full electron configuration that accounts for the s, p, d and f subshells.

Explore Other Elements

Want to see another element or try the element symbol quiz? Go back to the Interactive Periodic Table to explore all 118 chemical elements.

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