Assertion: noble gas | /r/CapableOf | refer make up a class of chemical elements
Facets:
value: sometimes
type: TEMPORAL
value: with similar properties
type: OTHER
value: as aerogens
type: MANNER
Source sentences:
text: The noble gases (historically also the inert gases; sometimes referred to as aerogens) make up a class of chemical elements with similar properties; under standard conditions, they are all odourless, colourless, monatomic gases with very low chemical reactivity.
text: The noble gases (historically also the inert gases; sometimes referred to as aerogens) make up a class of chemical elements with similar properties; under standard conditions, they are all odourless, colourless, monatomic gases with very low chemical reactivity.