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Atomic Structure of Neodymium and Actinium


Atomic Structure of Actinium and Neodymium


Atomic Properties

Atomic Number
60   
99+
89   
29

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

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

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

Atom
  
  

Number of Protons
60   
99+
89   
29

Number of Neutrons
84   
40
138   
16

Number of Electrons
60   
99+
89   
29

Radius of an Atom
  
  

Atomic Radius
181.00 pm   
13
195.00 pm   
7

Covalent Radius
201.00 pm   
10
Not Available   

Van der Waals Radius
229.00 pm   
20
Not Available   

Atomic Weight
144.24 amu   
99+
227.00 amu   
25

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

Adjacent Atomic Numbers
  
  

Previous Element
Radium
  

Next Element
Promethium
  
Thorium
  

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

Lattice Constant
365.80 pm   
30
567.00 pm   
8

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

Lattice C/A Ratio
1.61   
4
Not Available   

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