G 3aad < Guruubka 4aad > G 5aad Guruubka 4aad waa qeybta 4aad ee safafka Diwaanka Curiye. Si la mid ah qeybaha kale ee d-block, guruubkan wuxuu ka kooban yahay 4 curiye kuwaas oo kala ah: Titaaniyaam (Ti), Sirkooniyaam (Zr), Haafniyaam (Hf) iyo Rutherfordium (Rf). Curiyayaashan oo mararka qaar ah dareere, ayaa markey adkeha yihiin leh midab madoow ah. Guruubkan curiyayaasha ku jira waxay ka tirsan yihiin Transitional Metalska. Maqaalkan waa la bilaabay. Hadii aad wax ka taqaanid fadlan ka caawi Wikipedia in aad Wax ku dartid. Qoraalkaagu ha noqdo mid faa'iido leh oo dhexdhexaad ah.