Hafnium, metal Hf, atomiki nọmba 72, atọmịk arọ 178.49, bụ ọlaọcha na-egbuke egbuke agba ntụ ọla. Hafnium nwere isotopes isii kwụsiri ike n'okike: hafnium 174, 176, 177, 178, 179, na 180. Hafnium anaghị emeghachi omume na dilute hydrochloric acid, dilute sulfuric acid, na ngwọta alkaline siri ike, mana i...
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