NIOBIUM

Niobium is a chemical element with atomic number 41 located in Group 5 of the periodic table of elements. Symbolized as Nb. It is a transition metal ductile, gray, soft and not abundant.Niobe is the daughter of Tantalus, the sister of outbreaks and Pelops. Niobium had married the King of Thebes, Amphion. Had had with many children, the legend says 20. Proud of their offspring boasted of having surpassed Leto, who only had to Apollo and Artemis, they then punished and killed with their bows to young people and girls. For nine days and nine nights Niobe wept over the bodies.According to another legend Phoroneus daughter of the Argive, who was the arbitrator in between was discussed and Poseidon.