Assertion: deuterium | /r/HasProperty | represented by the chemical symbol d.
Facets:
value: frequently
type: TEMPORAL
Source sentences:
text: Deuterium is frequently represented by the chemical symbol D. Since it is an isotope of hydrogen with mass number 2, it is also represented by 2
text: Deuterium is frequently represented by the chemical symbol D. Since it is an isotope of hydrogen with mass number 2, it is also represented by ²H. IUPAC allows both D and ²H, although ²H is preferred.