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Atomic Structure of Calcium and Potassium


Atomic Structure of Potassium and Calcium


Atomic Properties

Atomic Number
20   
99+
19   
99+

Electron Configuration
[Ar] 4s2   
[Ar] 4s1   

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

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

Atom
  
  

Number of Protons
20   
99+
19   
99+

Number of Neutrons
20   
99+
20   
99+

Number of Electrons
20   
99+
19   
99+

Radius of an Atom
  
  

Atomic Radius
197.00 pm   
6
227.00 pm   
3

Covalent Radius
176.00 pm   
22
203.00 pm   
9

Van der Waals Radius
231.00 pm   
19
275.00 pm   
5

Atomic Weight
40.08 amu   
99+
39.10 amu   
99+

Atomic Volume
29.90 cm3/mol   
7
45.46 cm3/mol   
3

Adjacent Atomic Numbers
  
  

Previous Element
Potassium
  
Aluminium
  

Next Element
Scandium
  
Calcium
  

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

Lattice Constant
558.84 pm   
9
532.80 pm   
12

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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