Yes. Niobium is a metal, classified as a transition metal on the periodic table.

How many protons does niobium have?

Niobium has 41 protons. Its atomic number is 41, which is also the number of electrons in a neutral atom of niobium.

What group and period is niobium in?

Niobium is in group 5 and period 5 of the periodic table, in the d-block.

What is the atomic mass of niobium?

The atomic mass of niobium is 92.906 u (unified atomic mass units).

Element 41

Niobium (Nb)

Transition metal · Period 5 · Group 5 · d-block

Niobium (Nb) is element 41 of the periodic table, a transition metal in period 5, group 5 (d-block) with an atomic mass of 92.906 and is a solid at standard conditions.

At a glance

Atomic number: 41
Symbol: Nb
Atomic mass: 92.906 u
Category: Transition metals
Period: 5
Group: 5
Block: d-block
Phase at STP: solid

Electron structure

Electron configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d4 5s1
Shorthand configuration: [Kr] 4d4 5s1
Electrons per shell: 2, 8, 18, 12, 1
Oxidation states: -3, -1, +1, +2, +3, +4, +5

Physical properties

Melting point: 2,750 K (2,476.85 °C)
Boiling point: 5,017 K (4,743.85 °C)
Density: 8.57 g/cm³
Phase: solid

Atomic properties

Electronegativity (Pauling): 1.6
Atomic radius: 198 pm
Covalent radius: 164 pm
First ionization energy: 652 kJ/mol
Electron affinity: 86 kJ/mol

Notable isotopes

Notable isotopes of Niobium: mass number, atomic mass, natural abundance, and stability.
Isotope	Mass	Abundance	Stability
Nb-93	92.90638	100%	Stable

Common uses

Superconducting magnets
Steel alloys
Jewelry
Jet engines

Discovery

Year: 1801
Discovered by: Charles Hatchett
Country: England

Frequently asked questions

Is niobium a metal?: Yes. Niobium is a metal, classified as a transition metal on the periodic table.
How many protons does niobium have?: Niobium has 41 protons. Its atomic number is 41, which is also the number of electrons in a neutral atom of niobium.
What group and period is niobium in?: Niobium is in group 5 and period 5 of the periodic table, in the d-block.
What is the atomic mass of niobium?: The atomic mass of niobium is 92.906 u (unified atomic mass units).

Keep exploring

Niobium's row is on the printable element property sheet, and its tile is on the periodic table wall chart - the same numbers as above, laid out for A4 or A3 paper.