411 REFERENCE · Wiktionary
H-1
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
H1 H₁· H1· H1- H1⁻ H₁- H₁⁻ H1+ H1⁺ H₁+ H₁⁺ H₁
Translingual
Noun
mul noun
mul Q12830437 protium (hydrogen-1)
mul ¹H<id:Q12830437>
mul H<id:Q556><qq:synonymous when without any qualifier>
mul H-2<id:Q102296> ²H<id:Q102296> D<id:Q102296> ; H-3<id:Q54389> ³H<id:Q54389> T<id:Q54389> ; H-4<id:Q1064956> ⁴H<id:Q1064956> Q<id:Q1064956>
See also
mul H1 HI
mul Hydrogen Isotopes