411 REFERENCE · Wiktionary
He₂
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Translingual
He2
Etymology
mul He 2
Symbol
chemical formula for a helium dimer.
mul Chemical formulae
411 REFERENCE · Wiktionary
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.