EntityQ902508· pop 16· linked from 49 articlesdihydrogen cationSign in to savemolecular ionConnectionshydrogenEntityionEntityGerhard HerzbergEntityquantum mechanicsEntityelectronEntityInternational Standard Book NumberEntityErwin SchrödingerEntityprotonEntityLinus PaulingEntitydigital object identifierEntityWolfgang PauliEntitychemical formulaEntitycovalent bondEntitycosmic radiationEntitydeuteriumEntitySchrödinger equationEntitytritiumEntityHarold UreyEntitymolar massEntityionizationEntityCategoriesCationsChembox image size setChemical articles with multiple CAS registry numbersChemical articles with multiple ChEBIsChemical articles with multiple compound IDsChemical pages without ChemSpiderIDChemicals using indexlabelsChemicals without a PubChem CIDHydrogen physicsQuantum chemistryQuantum models