Niobium

Statistics:

• Name: Niobium
• Symbol: Nb
• Classification: Transition Metal
• Atomic Number: 41
• Atomic Mass: 92.90638 g/mol
• Density: 8.58 g/cm³
• Melting: 2468°C
• Boiling: 4927°C
• Protons & Electrons:41
• Neutrons:52
• Discovered: 1801
• Discovered By: Hatchett
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 18
• Level 4: 12
• Level 5: 1

Isotopes:

Isotope: Half-life

• ⁹⁰Nb: 14.60 hours
• ⁹¹Nb: 680 years
• ^91m1Nb: 60.86 days
• ⁹²Nb: 3.47e+7 years
• ^92m1Nb: 10.15 days
• ⁹³Nb: stable
• ^93m1Nb: 16.13 years
• ⁹⁴Nb: 2.03e+4 years
• ^94m1Nb: 6.263 minutes
• ⁹⁵Nb: 34.975 days
• ^95m1Nb: 86.6 hours
• ⁹⁶Nb: 23.35 hours
• ⁹⁷Nb: 72.1 minutes
• ^97m1Nb: 52.7 seconds

Brief Summary

Niobium is a Transition Metal with the symbol 'Nb' and contains 41 Protons & Electrons with 52 neutrons in the nucleus of the atom. Niobium has an atomic mass of 92.90638 g/mol and, at a temperature of 20°C, has a density of 8.58 g/cm³. It will melt at a temperature of 2468°C and boil at 4927°C.

Niobium was discovered by Hatchett in 1801 and is named 'Niobium' Niobe, the daughter of Tantalus, a mythical king.

Some common usages for Niobium: currently unknown.

Definitions and Notes

Density listed is at a temperature of 20°C.

Isotopes are forms of an element who have the same atomic number but different mass because they contain different number of neutrons.

Half-life is the time required for a quantity of a subject to fall to half of its current quantity.

MLA Citing Format

Niobium :: Nb :: 41 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/niobium.html>.