Kammala wannan jumla: An gina Atomium a matsayin babban ɗakin da kuma alamar
1958 Expo na Duniya na Brussels (Expo 58). A shekarun 1950, imani a ci gaban kimiyya ya kasance mai girma, kuma an zaɓi tsarin da ke nuna atoms don nuna wannan. Atomium's tara bakin karfe clad spheres nuna tara baƙin ƙarfe atoms a cikin siffar jiki-tsakiya mai siffar sukari naúrar cell cewa zai iya misali wakiltar α-baƙin ƙarfe (ferrite) crystal, magnified 165 biliyan sau.