Assertion: manganese | /r/HasAspect | 21 isotopes
Facets:
value: with mass numbers
type: OTHER
Source sentences:
text: Isotopes: Manganese has 21 isotopes whose half-lives are known, with mass numbers 46 to 66.
text: Manganese has 21 isotopes whose half-lives are known, with mass numbers 46 to 66.