Home
Compare Metals


Atomic Structure of Calcium and Actinium


Atomic Structure of Actinium and Calcium


Atomic Properties

Atomic Number
20   
99+
89   
29

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

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

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

Atom
  
  

Number of Protons
20   
99+
89   
29

Number of Neutrons
20   
99+
138   
16

Number of Electrons
20   
99+
89   
29

Radius of an Atom
  
  

Atomic Radius
197.00 pm   
6
195.00 pm   
7

Covalent Radius
176.00 pm   
22
Not Available   

Van der Waals Radius
231.00 pm   
19
Not Available   

Atomic Weight
40.08 amu   
99+
227.00 amu   
25

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

Adjacent Atomic Numbers
  
  

Previous Element
Potassium
  
Radium
  

Next Element
Scandium
  
Thorium
  

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

Lattice Constant
558.84 pm   
9
567.00 pm   
8

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

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical >>
<< Chemical

Compare All Metals

All Metals

All Metals


Compare All Metals