Niobium has the chemical symbol Nb.

Its original name was columbium.

It is a transition metal found in Group 5 of the periodic table alongside vanadium and tantalum.

Niobium is named after Niobe, a figure from Greek mythology and the daughter of Tantalus, linking its name to the related element tantalum.

For over 100 years, scientists argued over whether the element should be called niobium or columbium.

The name niobium became the international standard in 1950, though columbium is still used in some US metallurgical contexts.

Niobium was first discovered in 1801 by English chemist Charles Hatchett.

It was originally found in a mineral called columbite, which inspired the early name columbium.

Niobium is highly resistant to corrosion, even at very high temperatures.

It has a relatively high melting point of about 2,477°C or 4,491°F.

Niobium is commonly added to steel alloys to increase strength without significantly increasing weight.

Small amounts of niobium make steel lighter, stronger, and more flexible, which is ideal for pipelines and skyscrapers.

Many modern bridges use niobium strengthened steel.

Niobium is crucial in jet engines and rocket components due to its heat resistance.

The element is used in superconducting magnets, including those found in MRI machines.

Niobium tin, Nb₃Sn, is one of the most important superconducting materials ever developed.

Without niobium, many high field scientific experiments would be impossible.

Niobium becomes superconductive at very low temperatures.

Brazil produces about 90 percent of the world’s niobium supply, with Canada being another significant producer, though far behind Brazil.

The metal has a silvery gray appearance with a slight bluish tint.

When exposed to air, niobium forms a thin protective oxide layer that prevents further corrosion.

Niobium can be anodized, producing vibrant surface colors used in jewelry.

Hypoallergenic niobium jewelry is popular with people who have metal sensitivities.

Niobium is non toxic and biocompatible, making it suitable for medical implants.

It is sometimes used in pacemakers and surgical tools.

Niobium alloys were used in parts of the Apollo space program.

The element is relatively rare in the Earth’s crust, but concentrated deposits make mining practical.

Niobium often occurs alongside tantalum, making separation difficult.

Early chemists confused niobium and tantalum for decades because of their nearly identical chemical behavior.

Niobium does not occur naturally as a free metal and is always found in compound form.

The element helps reduce the carbon footprint of steel by allowing less material to perform the same job.

Niobium is used in particle accelerators, including components at CERN.

Superconducting niobium cavities help accelerate particles to near light speed.

The metal has excellent ductility, meaning it can be drawn into very thin wires.

Niobium was once called a problem element due to confusion over its identity.