Assertion: pm | /r/HasProperty | silver-white metal
Facets:
Source sentences:
text: Promethium is a silver-white metal with a melting point of 1,160°C (2,120°F) and no measured boiling point.
text: Promethium is a silver-white metal with a melting point of 1,160°C (2,120°F) and no measured boiling point.