atom
preferred label: اتم @fa
type: Concept
related: quadrivalent

inorganic chemistry
preferred label: شیمی معدنی @fa
type: Concept
narrower: quadrivalent

element
preferred label: عنصر @fa
type: Concept
related: quadrivalent

quadrivalent
related: element
related: atom
broader: inorganic chemistry
preferred label: چهار ظرفیتی @fa
type: Concept