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Periodic Table

Picture of  Actinium

 Atomic No. Order:

 Alphabetic Order:

Ground State Electron Configuration of  Actinium
Symbol: Ac
Atomic Number: 89
Atomicmass: 227 g.mol -1
Electronegative (According to Pauling): 1.1
Density: 10.07 g.cm-3 at 20°C
Melting Point: 1050 °C
Boiling Point: 3250 °C
Venderwaals Radius: unknown
Ionic Radius: unknown
Isotopes: 4
Electronic Shell: [ Rn ] 6d1 7s2
Energy Of First Ionization: 664.6 kJ.mol -1  


No of Protons
Standard Potential:

Electron in Full Shell
Discoverd By: Discovered by André Debierne in 1899

Electron in Partial Shell

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