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Periodic Table - Elements - Thallium
| Symbol |
Tl |
|
| Atomic Number |
81 |
Relative Atomic Mass
12C = 12.0000 |
204.3833 |
Atomic Radius
pm |
170 |
First Ionisation Energy
kJ mol-1 |
589.3 |
| Electronegativity |
n/a |
Density
kg m-3 |
11850 [293 K]
11290 [l., m.p.] |
Molar Volume
cm3 |
17.24 |
Thermal Conductivity
W m-1 K-1 |
46.1 [300 K] |
Melting Point
K |
576.7 |
Boiling Point
K |
1730 |
| Number of Isotopes |
41 |
Ground State Electron
Configuration |
[Xe]4f145d106s26p1 |
| Term Symbol |
2P1/2 |
| Discovery |
Discovered by W. Crookes (London, England) in 1861 and isolated by C.A. Maly (Paris, France) in 1862 |
| Name Derived From |
Greek thallos meaning 'green twig' |
Name in Other
Languages |
 Croatian | Talij |
 Danish | thallium |
 Dutch | thallium |
 Finnish | tallium |
 French | thallium |
 German | Thallium |
 Italian | tallio |
 Norwegian | thallium |
 Portuguese | tálio |
 Spanish | talio |
 Swedish | tallium |
| 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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