Assertion: heavy metal | /r/DefinedAs | element
Facets:
value: commonly
type: DEGREE
value: conventionally
type: MANNER
value: with metallic properties
type: OTHER
Source sentences:
text: Heavy metals are conventionally defined as elements with metallic properties and an atomic number >20.
text: Heavy metals are commonly defined as those elements with a high (>5.0) relative density.