Nkọwa: Columbium (akara "Cb") bụ aha mbụ e nyere Hatchett mgbe ọ chọpụtara ọla ahụ na 1801. Aha ahụ gosipụtara na ụdị ụdị nke ore ahụ sitere na America (Columbia). Aha a ka na-eji ya eme ihe na akwụkwọ akụkọ America <unk> akwụkwọ ikpeazụ nke American Chemical Society bipụtara na columbium na aha ya sitere na 1953 <unk> ebe a na-eji niobium eme ihe na Europe. Iji kwụsị ọgba aghara a, a họọrọ aha niobium maka ihe 41 na 15th Conference of the Union of Chemistry na Amsterdam na 1949. Otu afọ mgbe e mesịrị, aha a nabatara aha a site na International Union of Pure and Applied Chemistry (IPACU) mgbe afọ 100 gasịrị, n'agbanyeghị esemokwu, n'agbanyeghị aha oge nke aha columbium. Nke a bụ ụdị nkwekọrịta; IUPAC nabatara iji tungsten mee ihe na North America kama iji wolfram; IUPAC na ọtụtụ ụlọ ọrụ gọọmentị US na ndị Europe na-ejikarị aha ọla kọpa mee ihe.
International Union of Pure and Applied Chemistry [International Union of Pure and Applied Chemistry]