Assertion: boron | /r/HasProperty | unreactive
Facets:
value: very
type: DEGREE
value: towards the air
type: LOCATION
value: in crystalline form
type: OTHER
value: chemically
type: MANNER
value: at high temperatures
type: TEMPORAL
value: with many elements
type: OTHER
value: generally
type: DEGREE
Source sentences:
text: Boron, the first element in the group, is generally unreactive with many elements except at high temperatures, although it is capable of forming many compounds with hydrogen, sometimes called boranes.
text: Boron is often used in metal refining, because it is reactive at high temperatures.
text: Boron is a less reactive element and does not readily react with air or water.
text: Boron in its crystalline form is very unreactive.
text: It is chemically unreactive and is the second hardest element on earth.
text: In crystalline form, boron is quite unreactive.
text: Reactivity towards air: Boron is unreactive towards the air.
text: Boron is unreactive when comes in contact with acids and alkalis at moderate temperatures.
text: Boron is unreactive when comes in contact with acids and alkalis at moderate temperatures.