About: http://webisa.webdatacommons.org/244125373

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	2. a) Atomic number is the number of protons in a nucleus, atomic mass is the sum of protons and neutrons in a nucleus, and an isotope is a nucleus with the same number of protons but different number of neutrons.
http://www.w3.org/ns/prov#wasQuotedFrom	luc.edu