411 REFERENCE · Wiktionary
H₁·
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 H-1
Translingual
Symbol
mul symbol
en monatomic en hydrogen en radical
mul H1· H· H₁* H1* H*
mul D· D₁· T· T₁·
mul H I H-I HI
monatomic en protium radical