Unpentnillium is the 150th element in the periodic table and is in the 8th period. Unpentnillium is a superactinide. It's still not discovered yet but we may soon. It's symbol is Upn.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.