Hafnium, Hf irin, nọmba atomiki 72, iwuwo atomiki 178.49, jẹ irin iyipada grẹy fadaka didan. Hafnium ni awọn isotopes iduroṣinṣin mẹfa nipa ti ara: hafnium 174, 176, 177, 178, 179, ati 180. Hafnium ko ni fesi pẹlu dilute hydrochloric acid, dilute sulfuric acid, ati awọn solusan ipilẹ to lagbara, ṣugbọn i...
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