Assertion: californium | /r/HasProperty | synthetic element
Facets:
value: in the periodic table
type: LOCATION
Source sentences:
text: Californium is a synthetic element and is not found naturally on Earth.
text: The first thing we need to point out is that Californium is synthetic, i.e. it isn’t naturally found in the Earth.
text: Californium is a synthetic element produced in trace quantities by helium isotope bombardment of curium.
text: Californium is a synthetic element that is not present in the geosphere.
text: Californium is a synthetic element in the periodic table that has the symbol Cf and atomic number 98.