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Periodic Table - Elements - Thulium
| Symbol |
Tm |
|
| Atomic Number |
69 |
Relative Atomic Mass
12C = 12.0000 |
168.93421 |
Atomic Radius
pm |
175 |
First Ionisation Energy
kJ mol-1 |
596.7 |
| Electronegativity |
1.25 |
Density
kg m-3 |
9321 [293 K] |
Molar Volume
cm3 |
18.12 |
Thermal Conductivity
W m-1 K-1 |
16.8 [300 K] |
Melting Point
K |
1818 |
Boiling Point
K |
2220 |
| Number of Isotopes |
28 |
Ground State Electron
Configuration |
[Xe]4f136s2 |
| Term Symbol |
2F7/2 |
| Discovery |
Discovered by P.T. Cleve (Uppsala, Sweden) in 1879 |
| Name Derived From |
Named after Thule (ancient name for Scandinavia) |
Name in Other
Languages |
 Croatian | Tulij |
 Danish | thulium |
 Dutch | thulium |
 Finnish | tulium |
 French | thulium |
 German | Thulium |
 Italian | tulio |
 Norwegian | thulium |
 Portuguese | túlio |
 Spanish | tulio |
 Swedish | tulium |
| 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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