Assertion: polonium | /r/HasProperty | rare element
Facets:
value: very
type: DEGREE
value: in nature
type: LOCATION
value: in pitchblende
type: LOCATION
value: with 33 radioisotopes
type: OTHER
Source sentences:
text: Polonium is a rare element with 33 radioisotopes.
text: Polonium is extremely rare, even in pitchblende: 1,000 tons of the ore must be processed to obtain 40 milligrams of polonium.
text: Polonium is a rare radioactive metalloid.
text: Polonium is a very rare natural element.
text: Polonium is a rare radioactive element that is hard to come by -- unless you have a nuclear programme capable of producing it -- and Israel has ready access to it.
text: Polonium is a rare radioactive semi-metal or metalloid.
text: Polonium is a very rare and radioactive element which is found naturally in uranium ore.
text: Polonium is considered a rare natural element.
text: Polonium is a relatively rare element.
text: Polonium is a very rare element in nature because of the short half-lives of all its isotopes.
text: Polonium is a very rare element.
text: Polonium in the environment Polonium is a very rare element in nature.
text: Polonium is a very rare element due to the short half-life of all its isotopes.
text: Polonium is a very rare element in nature because of the short half-life of all its isotopes.
text: Polonium is a very rare element in nature because of the short half-life of all its isotopes.
text: Polonium in the environment Polonium is a very rare element in nature.
text: Polonium is a very rare element in nature because of the short half-life of all its isotopes.
text: Polonium is a very rare element in nature because of the short half-life of all its isotopes.
text: Polonium is a very rare element in nature because of the short half-life of all its isotopes.
text: Polonium is an extremely rare element found in uranium ores (about 0.1 gram per ton).
text: Polonium is an extremely rare element due to the extremely short half-life of its isotopes.
text: Polonium is an extremely rare element found in uranium ores (about 0.1 gram per ton).
text: Polonium is an extremely rare element found in uranium ores (about 0.1 gram per ton).
text: Polonium is an extremely rare element found in uranium ores (about 0.1 gram per ton).
text: Familiarity information: POLONIUM used as a noun is very rare.
text: It is so rare, however, that all the polonium needed is now made in particle accelerators.
text: Polonium is a rare radioactive metalloid.
text: Polonium is a rare radioactive metalloid.
text: Polonium is a very rare natural element.