Chlorine
  

 Atomic No. Order:
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 Alphabetic Order:
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  Periodic Table

Ground State Electron Configuration

  2, 8,  

  7  

 

  F
 9 		Cl
17 		Br
35 		   I 
 53 		  At
85 		Uus
117 		Uhs
167 		Bus
217

Chlorine

Symbol Cl
Atomic Number 17
Group halogens
Relative Atomic Mass
12C = 12.0000 		35.453
Atomic Radius  pm 99
First Ionisation Energy
kJ mol -1 		1251.1
Ionisation Energy (eV) 12,9676
Electronegativity 3.16
Density
kg m -3 		2030 [113 K]
1507 [239 K]
3.214 [273 K]
Molar Volume  cm 3 17.46 [113 K]
Thermal Conductivity
W m -1 K -1 		0.0089 [300 K]
Melting Point K 172.17
Boiling Point K 239.18
Number of Isotopes 13
Inner + outer Shells
  2   +   1    = 3
Inner + outer Orbitals
  10   +   7    = 17
Filling Orbital
  3p 5   
Ground State Electron
Configuration 
[Ne]   3s 2     3p 5  
Ground State Electron
Configuration with
free Orbitals (n=1)
 

  0, 0, 1  

 

Ground State Electron Configuration with free Orbitals
Ground State Electron
Configuration with
compressed Orbitals (n=10 )

  0, 0, 10  

 

Ground State Electron with compressed Orbitals
Singularity 
28 =  10 + 7 + 1 + 10
  s p d  f g h i j
1 2              
2

2

6

           
3

2

5 1 10          
4                
5                
6                
7                
8                
 
Term Symbol 2P 3/2
Discovery Discovered by C.W. Scheele (Uppsala, Sweden) in 1774
Name Derived From Greek chloros meaning 'pale green'
 

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