The periodic Table
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by Peder Axensten

Cl


in WebElements
in X-Ray info 		Cl, 17
chlorine (English)
chlore, m. (French)
Chlor, n. (German)
khlor (Russian)
klor (Swedish)

Symbol, numberCl, 17 (halogen), Group: 17; 7A
Weight35.4537
In Nature
Discovered1774, by Carl Wilhelm Scheele (Sweden)
Density  [kg/m3]2030 [113 K] (solid)   1507 [239 K] (liquid)   3.214 [273 K] (gas)   
Molar volume17.46 [113 K] cm3
Critical Temperature417 K   (144 °C), pressure: 7700 kPa, volume: 124 cm3/mol
Melting Temperature172.17 K   (-100.83 °C)   Enthalpy: 20.4033 kJ/mol
Boiling Temperature239.18 K   (-33.82 °C)   Enthalpy: 6.41 kJ/mol
ThermalConductivity: 0.0089 [300 K] (gas) W/Km     
Configuration1s2 2s2p6 3s2p5
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
Cl