Assertion: rutherfordium's isotope | /r/HasProperty | easier to make
Facets:
Source sentences:
text: Rutherfordium-261 has a half-life of just over a minute; rutherfordium-263 has a half-life of 10 minutes and rutherfordium-267 may have a half life of over an hour, but so far the experiments have to be carried out with the lighter isotopes that are easier to make, like rutherfordium-261.