The periodic Table
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by Peder Axensten

Tm


in WebElements
in X-Ray info 		Tm, 69
thulium (English)
thullium, m. (French)
Thulium, n. (German)
tulij (Russian)
tulium (Swedish)

Symbol, numberTm, 69 (metal)
Weight168.93421
In Nature
Discovered1879, by P.T. Cleve (Sweden)
Density  [kg/m3]9321 [293 K] (solid)   
Molar volume18.12 cm3
Melting Temperature1818 K   (1545 °C)   Enthalpy: 247 kJ/mol
Boiling Temperature2220 K   (1947 °C)   Enthalpy: 18.4 kJ/mol
Electrical resistance79.0E-8 [298 K] Wm
ThermalConductivity: 16.8 [300 K] W/Km     Expansion: 13.3E-6 /K
Ionisation [kJ/mol]
  M-->  M+--> M2+--> M3+--> M4+--> M5+--> M6+--> M7+--> M8+--> M9+-->M10+
Thermodynamics
State DfH° DfG° S° CpH H°298.15-H°0
[kJ/mol] [J/Kmol] [kJ/mol]
Isotopes
Mass In nature Half-life Spin m/mN NMM Decay
Tm