Datu golongan 9
Golongan 9 utawi VIIIB inggih punika golongan datu kimia ring tabél périodik. Golongan puniki taler kaloktah dados golongan kobalt. Golongan puniki madaging datu minakadi kobalt (Co), rhodium (Rh), iridium (Ir), lan datu sintétis sané radioaktip meitnérium (Mt).
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