About: http://webisa.webdatacommons.org/38397817

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The halogens especially fluorine and chlorine are highly reactive and form compounds with most elements. ??? ??? ??? Noble gases Group 8A (18) helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).
http://www.w3.org/ns/prov#wasQuotedFrom	quizlet.com