Niobium

Chaitra 26/06/2026 19:58:08 Updated 26/06/2026 19:58:08
Property Value
Atomic Number 41
Element Niobium
Symbol Nb
Atomic Mass 92.906 u
Number of Neutrons 52 (most common isotope, Niobium-93)
Number of Protons 41
Number of Electrons 41
Period 5
Group 5
Phase Solid
Radioactive No
Natural Yes
Metal Yes
Nonmetal No
Metalloid No
Type Transition Metal
Atomic Radius 198 pm
Electronegativity 1.60 (Pauling scale)
First Ionization Energy 6.759 eV
Density 8.57 g/cm³
Melting Point 2477 °C
Boiling Point 4744 °C
Number of Isotopes 1 stable (Niobium-93)
Discoverer Charles Hatchett
Year 1801
Specific Heat 0.265 J/g·K
Number of Shells 5
Number of Valence Electrons 5
Tags: Tutorials Chemistry tutorial step by step learn how to guide examples
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