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Title: Datu golongan 4
Content: Golongan 4 utawi IVB inggih punika golongan datu kimia ring tabél périodik. Golongan puniki taler kaloktah dados golongan titanium. Golongan puniki madaging datu minakadi titanium (Ti), zirkonium (Zr), hafnium (Hf), lan datu sintétis sané radioaktip rutherfordium (Rf).