Niobium is a grey metal. 
39 words
🖼️ Images & Media (11)
Charles Hatchett. Soft-ground etching by...
Sommer, Giorgio (1834-1914) - n. 2990 -...
World Niobium Production 2006.svg
Niobium pentachloride solid.jpg
Niobium-pentachloride-from-xtal-3D-balls.png
Niobium metal.jpg
Apollo CSM lunar orbit.jpg
Merlin nozzle 4105129088 9659a4df4e o.jpg
Modern 3T MRI.JPG
A 1.3 GHz nine-cell superconducting radio...
2004 Austria 25 Euro 150 Years Semmering...
More to explore
✨ What else?
Related topics you might enjoy
📚
Content adapted from Wikipedia
|
Readability: FK 13.4
|
Vital Level 4