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Atomic Structure of Actinium and Neodymium


Atomic Structure of Neodymium and Actinium


Atomic Properties

Atomic Number
89   
29
60   
99+

Electron Configuration
[Rn] 6d1 7s2   
[Xe] 4f4 6s2   

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

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

Atom
  
  

Number of Protons
89   
29
60   
99+

Number of Neutrons
138   
16
84   
40

Number of Electrons
89   
29
60   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
181.00 pm   
13

Covalent Radius
Not Available   
201.00 pm   
10

Van der Waals Radius
Not Available   
229.00 pm   
20

Atomic Weight
227.00 amu   
25
144.24 amu   
99+

Atomic Volume
22.54 cm3/mol   
11
20.60 cm3/mol   
18

Adjacent Atomic Numbers
  
  

Previous Element
Radium
  

Next Element
Thorium
  
Promethium
  

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

Lattice Constant
567.00 pm   
8
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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