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Periodic Table - Elements - Tantalum
| Symbol |
Ta |
|
| Atomic Number |
73 |
Relative Atomic Mass
12C = 12.0000 |
180.9479 |
Atomic Radius
pm |
143 |
First Ionisation Energy
kJ mol-1 |
761 |
| Electronegativity |
1.5 |
Density
kg m-3 |
16654 [293 K]
15000 [l., m.p.] |
Molar Volume
cm3 |
10.87 |
Thermal Conductivity
W m-1 K-1 |
57.5 [300 K] |
Melting Point
K |
3269 |
Boiling Point
K |
5698 ± 100 |
| Number of Isotopes |
28 |
Ground State Electron
Configuration |
[Xe]4f145d36s2 |
| Term Symbol |
4F3/2 |
| Discovery |
Discovered by A.G. Ekeberg (Uppsala, Sweden) in 1802 |
| Name Derived From |
Greek Tantalos from Greek mythology |
Name in Other
Languages |
 Croatian | Tantal |
 Danish | tantal |
 Dutch | tantaal |
 Finnish | tantaali |
 French | tantale |
 German | Tantal |
 Italian | tantalio |
 Norwegian | tantal |
 Portuguese | tântalo |
 Spanish | tántalo |
 Swedish | tantal |
| Peter van der Krogt's Element Multidict - element name translations in over 48 langauges |
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Page compiled: Wed Sep 05 18:37:56 GMT+01:00 2001
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