Assertion: seaborgium | /r/HasAspect | 11 isotopes
Facets:
value: with mass number
type: OTHER
Source sentences:
text: Isotopes: Seaborgium has 11 isotopes whose half-lives are known, with mass numbers from 258 to 271.
text: Seaborgium has 11 isotopes with mass number ranging from 258Sg to 271Sg.