Transitional Metals Marka lagu gudo jiro cilmiga Kimisteriga, Transitional Metalsku waxay leeyihiin labo macno: Qeexida waafaqsan (IUPAC) waxay ku sheegtay in transitional metal ay yihiin curiye kimiko kuwaas oo qolofka elektaroonadoodu aanu dhamaystirneyn ama kuwo leh atom qolofka bu'diisu leedahay elektaroono kala dhantaalan. Mida labaad waa in saynisyahanadu ku sheegeen transitional metalsku yihiin bir kasta oo ku jirta guruubka d-block ee Diwaanka Curiye kuwaas oo ka bilaabma Guruubka 3aad ilaa laga gaadho Guruubka 12aad. Guruubka d-block tirada atomka curiyuhu waxay u dhaxeysaa 1 ilaa 10 elektaroono d ah. IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version:  (2006–) "transition element". Bury, C. R. J. Amer. Chem. Soc. 43 (7): 1602–1609. doi:10.1021/ja01440a023.  Maqan ama ebar |title= (caawin) Cite error: Invalid <ref> tag; no text was provided for refs named Jensen Petrucci, R. H. et al. (2002), “General Chemistry”, 8th edn, Prentice-Hall, pp.