For the purpose of this entry, transition metals are: scandium, vanadium, manganese, cobalt, copper, yttrium, niobium, hafnium, tungsten, titanium, chromium, iron, nickel, zinc, zirconium, molybdenum and tantalum.
Käesoleva alajaotise kohaldamisel on siirdemetallid skandium, vanaadium, mangaan, koobalt, vask, ütrium, nioobium, hafnium, volfram, titaan, kroom, raud, nikkel, tsink, tsirkoonium, molübdeen ja tantaal.