EntityQ3518755· pop 21· linked from 389 articleshydrogen ionSign in to savehydrogen atom that has gained or lost an electronConnectionshydroniumEntityacidEntityionEntityhydrogenEntitysodiumEntityelectronEntityphotosynthesisEntityInternational Standard Book NumberEntityprotonEntitybaseEntityelectric chargeEntityisotopeEntityWayback MachineEntityfossil fuelEntitymitochondrionEntitykinetic energyEntityadenosine triphosphateEntitydeuteriumEntitytritiumEntityInternational Union of Pure and Applied ChemistryEntityCategoriesHydrogen physics