About: http://webisa.webdatacommons.org/171416699

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 most stable of all the elements is Iron-56, with 26 protons and 30 neutrons, and which has a mass that???s a full 492 MeV lighter than 26 free protons and 30 free neutrons.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com