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Periodic Table
Picture of  Barium
 
 

 Atomic No. Order:e
[Picture]

 Alphabetic Order:
 

Barium  
Ground State Electron Configuration of  Barium
Symbol: Ba
Atomic Number: 56
Atomicmass: 137.33 g.mol -1
Electronegative (According to Pauling): 0.9
Density: 3.5 g.cm-3 at 20°C
Melting Point: 725 °C
Boiling Point: 1640 °C
Venderwaals Radious: 0.222 nm
Ionic Radious: 0.135
Isotopes: 16
Electronic Shell: [ Xe ] 6s2
Energy Of First Ionisation: 502.7 kJ.mol -1  

56

No of Protons
Standard Potential: - 2.90 V

Electorn in Full Shell
Discoverd By: Discovered by Sir Humphrey Davy in 1808

Electorn in Partial Shell
   
 
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