Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
weighing much more than normal, and needing a lot of effort to move or lift:
A super-heavy element is one that has a higher atomic mass (= the amount of substance contained in the smallest unit of a particular chemical element) than uranium :
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions