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![tantalum-element Tantalum](https://www.tantalumrecycling.com/wp-content/uploads/tantalum-element.jpg)
Ta - Tantalum
Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion resistant.
![niobium-element Niobium](https://www.tantalumrecycling.com/wp-content/uploads/niobium-element.jpg)
Nb - Niobium
Niobium has physical and chemical properties similar to those of the element tantalum.
Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion resistant.
Niobium has physical and chemical properties similar to those of the element tantalum.