atom
preferred label: اتم @fa
type: Concept
narrower: hydrogen neutral atom

hydrogen
preferred label: هیدروژن @fa
type: Concept
narrower: hydrogen neutral atom

hydrogen neutral atom
narrower: spin polarised atomic hydrogen
broader: atom
broader: hydrogen
preferred label: اتم طبیعی هیدروژن @fa
type: Concept

spin polarised atomic hydrogen
preferred label: هیدروژن اتمی اسپین‌قطبیده @fa
type: Concept
broader: hydrogen neutral atom