Oganesson - Og
Chemical properties of oganesson
| Atomic number | 118 |
|---|---|
| Representative mass number | 294 (Og-294; radioactive) |
| Periodic-table group | Group 18 (noble-gas group) |
| Electron configuration | [Rn] 5f14 6d10 7s2 7p6 |
| Density | Unknown |
| Melting point | Unknown |
| Boiling point | Unknown |
Oganesson (Og) is a synthetic, radioactive element with atomic number 118. The representative mass number shown here identifies a radioactive isotope; it is not a standard atomic weight. Only a few atoms have been produced, so bulk properties such as density, melting point, and boiling point are unknown.
Research and occurrence
Oganesson is a synthetic, radioactive element and the heaviest currently named element. Only a few atoms have been produced, and its properties are studied through nuclear experiments and theory. Although it occupies Group 18, its behavior may not match that of lighter noble gases; bulk properties have not been measured. It has no commercial or water-treatment application.
Health and environmental context
Oganesson is produced only in specialised nuclear research and is not encountered as an environmental contaminant in ordinary water or process-water treatment. This page is an element overview, not guidance for handling radioactive materials.
Back to the periodic table of elements.
Sources and further reading
Oganesson page last reviewed: by Lenntech.