... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > selenium molecular entity > selenium hydride > selanide

... > chemical entity > molecular entity > inorganic molecular entity > inorganic hydride > chalcogen hydride > selenium hydride > selanide

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > hydrides > inorganic hydride > chalcogen hydride > selenium hydride > selanide

... > chemical entity > molecular entity > main group molecular entity > s-block molecular entity > hydrogen molecular entity > hydrides > inorganic hydride > chalcogen hydride > selenium hydride > selanide

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > chalcogen hydride > selenium hydride > selanide