Niobium

Niobium (Nb) The periodic group number is 5 and the period number is 5.

Niobium is a chemical element that has the symbol NB on our periodic table. Niobium is a rare and soft gray metal and was discovered by Charles Hatchett in 1801.

The state of the element at room temperature is a solid form.

The colour niobium is a shiny, white, ductile metal. In air an oxide layer forms whose colour depends on its thickness. Shades of blue, green and yellow are typical.

The atomic number 41 and the mass number is 92.91.

The Melting Point of niobium is 2468.0 °C and the Boiling Point of niobium is 4927.0 °C.

Niobium is a metal not a metalloid or a non-metal.

Niobium Compounds - there are many of them
 * Niobium doesn't react with air or water under normal conditions
 * The surface of Niobium metal is protected by a thin oxide layer
 * It does react with halogens when warmed to form Niobium (V) halides - fluorine, F 2, chlorine, Cl 2 , bromine, l 2 , and more
 * No reaction at room temperature with acids but dissolves in hydrofluoric acid, HF, a mixture of HF and nitric acid, HNO 3
 * A result from reacting with chlorine Cl 2 - Niobium trichloride NbCl 3, colour - black, appearance - solid


 * Did you know? **
 * The name comes from the daughter of Tantalus Niobe.
 * Niobium jewelry has grown in popularity in recent years, in part because of its beautiful colour and the fact that people are rarely allergic to the substance. Jewelry made out of niobium is often expensive.