Assertion: polonium | /r/CapableOf | react with halogen
Facets:
value: to form tetrahalides
type: PURPOSE
Source sentences:
text: Polonium burns in air to form polonium (IV) oxide (PoO 2 ) and reacts with halogens to form tetrahalides (e.g., PoCl 4 , PoBr 4 , PoI 4 ).