Assertion: bromine's isotope | /r/HasProperty | natural
Facets:
Source sentences:
text: These are its only two natural isotopes, with 79Br making up 51% of natural bromine and 81Br making up the remaining 49%.
text: These are its only two natural isotopes, with 79Br making up 51% of natural bromine and 81Br making up the remaining 49%.