About: http://webisa.webdatacommons.org/342902828

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	Elements, such as the ones mentioned above, have a fixed number of protons but may exist with various numbers of neutrons.
http://www.w3.org/ns/prov#wasQuotedFrom	questionswithanswer.com