Tantalum

Statistics:

• Name: Tantalum
• Symbol: Ta
• Classification: Transition Metal
• Atomic Number: 73
• Atomic Mass: 180.9479 g/mol
• Density: 16.68 g/cm³
• Melting: 2996°C
• Boiling: 5425°C
• Protons & Electrons:73
• Neutrons:108
• Discovered: 1802
• Discovered By: Ekeberg
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 18
• Level 4: 32
• Level 5: 11
• Level 6: 2

Isotopes:

Isotope: Half-life

• ¹⁷⁹Ta: 1.82 years
• ¹⁸⁰Ta: 8.152 hours
• ¹⁸¹Ta: stable
• ¹⁸²Ta: 114.43 days

Brief Summary

Tantalum is a Transition Metal with the symbol 'Ta' and contains 73 Protons & Electrons with 108 neutrons in the nucleus of the atom. Tantalum has an atomic mass of 180.9479 g/mol and, at a temperature of 20°C, has a density of 16.68 g/cm³. It will melt at a temperature of 2996°C and boil at 5425°C.

Tantalum was discovered by Ekeberg in 1802 and is named 'Tantalum' After king Tantalus from Greek mythology.

Some common usages for Tantalum: capacitors, camera lenses.

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

Tantalum :: Ta :: 73 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/tantalum.html>.