Assertion: krypton | /r/HasProperty | one of the rarest gases
Facets:
value: very
type: DEGREE
value: in the atmosphere
type: LOCATION
Source sentences:
text: It's not just Superman's home planet; Krypton is one of the rarest gases on Earth, composing only 1 part per million of the atmosphere by volume.
text: Because krypton is so rare (and thus expensive), it has limited use.
text: Krypton is a rare gas.
text: Krypton is a rare and inert gas and belong to the Nobel gases.
text: Krypton is one of the rarest gases on earth and this scarcity drives up its value.
text: Krypton might be one of the rarest gases in the atmosphere, but in total there are more than 15 billion tonnes of this metal circulating in the planet, of which only about 8 tonnes a year are extracted, via liquid air.
text: Krypton is one of the rarest gases in the Earth’s atmosphere, accounting for only 1 part per million by volume.
text: Krypton is one of the rarest gases in the Earth’s atmosphere, it is present in the air to the extent of about 1 ppm (part per million).
text: Because krypton-81 (and krypton in general) is quite rare in the atmosphere, using the gas for dating requires a lot of material — 220 lbs.
text: The noun KRYPTON has 1 sense: 1. a colorless element that is one of the six inert gasses; occurs in trace amounts in air Familiarity information: KRYPTON used as a noun is very rare.
text: Several krypton uses are: - filling gas for bulbs in special high speed photography - magnetic resonance imaging - calorimeters for particles physics - lasers Uses are limited because krypton is rare and very expensive.