Niobium (Nb) — Transition metal. Atomic number 41.
Gray crystalline metal
- Atomic number: 41
- Symbol: Nb
- Atomic mass: 92.906 u
- Category: Transition metal
- State: Solid
- Melting point: 2476.85 °C / 2750 K
- Boiling point: 4743.85 °C / 5017 K
- Density: 8.57 g/cm³ (20°C)
- Electron configuration: [Kr] 4d4 5s1
- Oxidation states: +2, +3, +5
- Electronegativity: 1.6
- Discovered by: Charles Hatchett (1801)
Common uses: Superconductors, Steel alloys, Jewelry
Biological role: No known biological role.
Frequently Asked Questions about Niobium
What is the atomic number of niobium?
Niobium has an atomic number of 41, meaning each atom contains 41 protons in its nucleus.
What is the atomic mass of niobium?
The standard atomic weight of niobium is 92.906 u (unified atomic mass units).
What category does niobium belong to?
Niobium is classified as a transition metal.
What is the state of niobium at room temperature?
Niobium is a solid at 20 °C (68 °F).
What is the melting point of niobium?
The melting point of niobium is 2476.85 °C / 2750 K.
What is the boiling point of niobium?
The boiling point of niobium is 4743.85 °C / 5017 K.
What is the density of niobium?
The density of niobium is 8.57 g/cm³ (20°C).
What is the electronegativity of niobium?
Niobium has a Pauling electronegativity of 1.6.
What is the electron configuration of niobium?
The electron configuration of niobium is [Kr] 4d4 5s1.
What are the common oxidation states of niobium?
Niobium commonly exhibits the following oxidation states: +2, +3, +5.
When was niobium discovered?
Niobium was discovered in 1801 by Charles Hatchett.
Is niobium radioactive?
Niobium is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of niobium?
No known biological role.
What are the common uses of niobium?
Niobium is used for: Superconductors; Steel alloys; Jewelry.
