Picture of Antimony
  

 Atomic No. Order:
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 Alphabetic Order:
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  Periodic Table

  Ground State Electron Configuration of Antimony

  2, 8, 18,  

  18,  5  

  N
 7		  P
15		  As
33		Sb
51		  Bi
 83		Uup
115		Uhp
165		Bup
215

Antimony

SymbolSb
Atomic Number51
Relative Atomic Mass
12C = 12.0000		121.760   (1)    [Since 1993]
Atomic Radius  pm141
First Ionisation Energy
kJ mol -1		833.7
Ionisation Energy (eV)8,6084
Electronegativity2.05
Density
kg m -3		6691 [293 K]
6483 [m.p.]
Molar Volume  cm 318.20
Thermal Conductivity
W m -1 K -1		24.3 [300 K]
Melting Point  K903.89
Boiling Point  K1908
Number of Isotopes40
Isotope Atomic mass/u Mole fraction121Sb  120.903 8222(26) 0.5721(5)
123Sb  122.904 2160(22) 0.4279(5)
Inner + outer Shells
  3  +  2   =5
Inner + outer Orbitals
  28  +  23   =51
Filling Orbital
  5p 3   
Ground State Electron
Configuration
[Kr]  4d 10    5s 2    5p 3      
Ground State Electron
Configuration with
free Orbitals (n=3)
 

  0, 0, 0, 0, 3  

Ground State Electron Configuration with free Orbitals of Antimony
Ground State Electron
Configuration with
compressed Orbitals (n=56)
 

  0, 0, 0, 14, 42  

Ground State Electron Configuration with compressed Orbitals of Antimony
 
Singularity
110= 28+23+3+56
 
 
s
p
d
 f
g
h
i
j
1
2
       
2
2
6
      
3
2
6
10
     
4
2
6
10

14

    
5
2
3
3

10

14

18
   
6
        
7
        
8
        
  
Term Symbol4S 3/2
DiscoveryKnown to ancients
Name Derived FromThe name derives from the Greek, anti + monos for "not alone or not one" because it was found in many compounds. The chemical symbol, Sb, comes from stibium, which is derived from the Greek stibi for "mark" because it was used for blackening eyebrows and eyelashes. The minerals stibnite (Sb2S3) and stibine (Sb2H3) are two of more than 100 mineral species, which were known in the ancient world.

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APSIDIUM  ©  Created:    2002-07-20 

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