Assertion: pm | /r/HasProperty | lanthanide
Facets:
value: chemically
type: DEGREE
Source sentences:
text: Chemically, promethium is a lanthanide.
text: Promethium is a lanthanide and rare earth metal Color: silvery-white Atomic weight: (145), no stable isotopes State:
text: Chemically, promethium is a lanthanide, which forms salts when combined with other elements.
text: Promethium is a lanthanide and rare earth metal Color: silvery-white Atomic weight: (145), no stable isotopes State: