Assertion: californium | /r/HasProperty | the rarest elements
Facets:
value: on eof
type: LOCATION
value: to earth
type: LOCATION
Source sentences:
text: Californium has never been seen by any major scientist and it is on eof the rarest elements ever !
text: One interesting fact about Californium is that it has never been seen by any major scientist and it is one of the rarest elements ever!
text: californium is rare to earth, it is also toxic it is very bad for the human body
text: Californium is a rare element.
text: Californium belongs to the actinide series and is considered as rare earth element.
text: Californium has never been seen by any major scientist and it is on eof the rarest elements ever !
text: One interesting fact about Californium is that it has never been seen by any major scientist and it is one of the rarest elements ever!