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Atomic Structure of Calcium and Neodymium


Atomic Structure of Neodymium and Calcium


Atomic Properties

Atomic Number
20   
99+
60   
99+

Electron Configuration
[Ar] 4s2   
[Xe] 4f4 6s2   

Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100   
DHCP-Crystal-Structure-of-Neodymium.jpg#100   

Atom
  
  

Number of Protons
20   
99+
60   
99+

Number of Neutrons
20   
99+
84   
40

Number of Electrons
20   
99+
60   
99+

Radius of an Atom
  
  

Atomic Radius
197.00 pm   
6
181.00 pm   
13

Covalent Radius
176.00 pm   
22
201.00 pm   
10

Van der Waals Radius
231.00 pm   
19
229.00 pm   
20

Atomic Weight
40.08 amu   
99+
144.24 amu   
99+

Atomic Volume
29.90 cm3/mol   
7
20.60 cm3/mol   
18

Adjacent Atomic Numbers
  
  

Previous Element
Potassium
  

Next Element
Scandium
  
Promethium
  

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

Lattice Constant
558.84 pm   
9
365.80 pm   
30

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.61   
4

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