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Atomic Structure of Actinium and Calcium


Atomic Structure of Calcium and Actinium


Atomic Properties

Atomic Number
89   
29
20   
99+

Electron Configuration
[Rn] 6d1 7s2   
[Ar] 4s2   

Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
FCC-Crystal-Structure-of-Calcium.jpg#100   

Atom
  
  

Number of Protons
89   
29
20   
99+

Number of Neutrons
138   
16
20   
99+

Number of Electrons
89   
29
20   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
197.00 pm   
6

Covalent Radius
Not Available   
176.00 pm   
22

Van der Waals Radius
Not Available   
231.00 pm   
19

Atomic Weight
227.00 amu   
25
40.08 amu   
99+

Atomic Volume
22.54 cm3/mol   
11
29.90 cm3/mol   
7

Adjacent Atomic Numbers
  
  

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Potassium
  

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Thorium
  
Scandium
  

Valence Electron Potential
38.60 (-eV)   
99+
29.00 (-eV)   
99+

Lattice Constant
567.00 pm   
8
558.84 pm   
9

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

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