Assertion: boron | /r/CapableOf | form bbr
Facets:
value: respectively
type: DEGREE
Source sentences:
text: Boron reacts vigorously with the halogens fluorine, F 2 , chlorine, Cl 2 , bromine, Br 2 to to form the trihalides boron(III) fluoride, BF 3 , boron(III) chloride, BCl 3 , and boron(III) bromide, BBr 3 respectively.