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Atomic Structure of Gadolinium and Tantalum


Atomic Structure of Tantalum and Gadolinium


Atomic Properties

Atomic Number
64   
99+
73   
99+

Electron Configuration
[Xe] 4f7 5d1 6s2   
[Xe] 4f14 5d3 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
64   
99+
73   
99+

Number of Neutrons
93   
37
108   
28

Number of Electrons
64   
99+
73   
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
146.00 pm   
35

Covalent Radius
196.00 pm   
14
170.00 pm   
25

Van der Waals Radius
237.00 pm   
15
200.00 pm   
28

Atomic Weight
47.87 amu   
99+
180.95 amu   
38

Atomic Volume
19.90 cm3/mol   
20
10.90 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Europium
  
Hafnium
  

Next Element
Terbium
  
Tungsten
  

Valence Electron Potential
46.10 (-eV)   
34
110.00 (-eV)   
7

Lattice Constant
363.60 pm   
32
330.13 pm   
99+

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

Lattice C/A Ratio
1.59   
9
Not Available   

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