It's Elemental

Ununseptium

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(Ununseptium)

The Periodic Table of Elements

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Isotopes of the Element Ununoctium

[Click for Main Data]

Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.

Naturally Occurring Isotopes

Ununoctium has no naturally occurring isotopes.

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
2940.89 microsecondsAlpha Decay100.00%