Assertion: rutherfordium's isotope | /r/HasAspect | half-life of 14 minutes
Facets:
value: due to their short half-lives
type: CAUSE
Source sentences:
text: Due to their short half-lives (for example, the most stable isotope of seaborgium has a half-life of 14 minutes, and half-lives decrease gradually going to the right of the group) and the low yield of the nuclear reactions that produce them, new methods have had to be created to determine their gas-phase and solution chemistry based on very small samples of a few atoms each.