Assertion: fluorine | /r/HasProperty | light element
Facets:
value: very
type: DEGREE
Source sentences:
text: Fluorine is a light element classified as a halogen that is the most electronegative element known and is, therefore, highly prone to binding with metallic elements in nature to form salts.
text: Fluorine is an important player in green chemistry due to it being a very light element, which provides for high efficiency chemical reactions.