Assertion: erbium | /r/HasProperty | one of 14 rare earth elements
Facets:
value: with particularly useful energy dynamics
type: OTHER
Source sentences:
text: Erbium is one of 14 rare earth elements with atomic numbers 58 through 71 in Row 6 of the periodic table.
text: Erbium is a lanthanide and rare earth metal Color: silvery-white Atomic weight:
text: Erbium (Er) is a rare-earth metal with particularly useful energy dynamics for making telecoms wavelength optical sources.
text: Erbium is a chemical element in the lanthanide series and it is a rare earth element.
text: Erbium is one of 14 rare earth elements with atomic numbers 58 through 71 in Row 6 of the periodic table.