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Atomic Structure of Gadolinium and Americium


Atomic Structure of Americium and Gadolinium


Atomic Properties

Atomic Number
64   
99+
95   
23

Electron Configuration
[Xe] 4f7 5d1 6s2   
[Rn] 5f7 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
DHCP-Crystal-Structure-of-Americium.jpg#100   

Atom
  
  

Number of Protons
64   
99+
95   
23

Number of Neutrons
93   
37
148   
12

Number of Electrons
64   
99+
95   
23

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
173.00 pm   
21

Covalent Radius
196.00 pm   
14
180.00 pm   
21

Van der Waals Radius
237.00 pm   
15
244.00 pm   
10

Atomic Weight
47.87 amu   
99+
243.00 amu   
20

Atomic Volume
19.90 cm3/mol   
20
17.86 cm3/mol   
29

Adjacent Atomic Numbers
  
  

Previous Element
Europium
  
Plutonium
  

Next Element
Terbium
  
Curium
  

Valence Electron Potential
46.10 (-eV)   
34
44.00 (-eV)   
40

Lattice Constant
363.60 pm   
32
346.81 pm   
99+

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

Lattice C/A Ratio
1.59   
9
Not Available   

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