Assertion: technetium | /r/HasProperty | produced
Facets:
value: artificially
type: MANNER
value: typically
type: DEGREE
value: by bombarding molybdenum-98 with neutrons
type: MANNER
Source sentences:
text: Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust.
text: Technetium was the first element to be produced artificially.
text: Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust.
text: Technetium was the first element to be produced artificially.
text: Nearly all technetium is produced synthetically, and only minute amounts are found in nature.
text: Today, technetium is produced by bombarding molybdenum-98 with neutrons.
text: Technetium was the first element to be produced synthetically.
text: Technetium occurs in nature only in trace amounts as a spontaneous fission product of uranium and therefore is produced synthetically.
text: This is definitely clearer, but it isn't entirely clear why technetium is produced synthetically.
text: Technetium is the only element that is artificially produced.
text: Technetium can only be produced artificially because most forms or isotopes of it (atoms of the same chemical element with different numbers of neutrons) have an excess of neutrons, making it very unstable.
text: Technetium was the first element to be produced artificially and all its isotopes are radioactive.
text: Technetium was the first element to be produced artificially.
text: Technetium was the first element to be artificially produced.
text: Because it isn’t very present in the Earth’s crust, technetium is typically produced synthetically.
text: Technetium was the first element to be produced artificially.
text: Technetium was the first element to be artificially produced.