Niobium, Nb
Index
Niobium is a metal in groupVB of the periodic table with atomic number 41, an atomic weight of 92.91, and a density of 8.4 Mg/m3. Its melting point is 2468 C, and it boils at 3300 C.

The electronic configuration of Niobium is (Kr)(4d4)(5s1). Its atomic radius is 0.146 nm.

At room temperature Niobium has a face-centered cubic crystal structure with a = 0.392 nm.