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Periodic Table
Picture of  Lanthanum
 
 

 Atomic No. Order:e
[Picture]

 Alphabetic Order:
 

Lanthanum  
Ground State Electron Configuration of  Lanthanum
Symbol: La
Atomic Number: 57
Atomicmass: 138.91 g.mol -1
Electronegative (According to Pauling): 1.1
Density: 6.18 g.cm-3 at 20°C
Melting Point: 826 °C
Boiling Point: 0.186 nm
Venderwaals Radious: 0.104 nm (+3)
Ionic Radious:
Isotopes: 7
Electronic Shell: [ Xe ] 5d1 6s2
Energy Of First Ionisation: 539 kJ.mol -1  

57

No of Protons
Standard Potential: - 2.52 V ( La+3/ La )

Electorn in Full Shell
Discoverd By: Discovered by Carl Mosander in 1839

Electorn in Partial Shell
   
 
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