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Atomic Structure of Platinum and Promethium


Atomic Structure of Promethium and Platinum


Atomic Properties

Atomic Number
78   
38
61   
99+

Electron Configuration
[Xe] 4f14 5d9 6s1   
[Xe] 4f5 6s2   

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

Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100   
DHCP-Crystal-Structure-of-Promethium.jpg#100   

Atom
  
  

Number of Protons
78   
38
61   
99+

Number of Neutrons
117   
24
84   
40

Number of Electrons
78   
38
61   
99+

Radius of an Atom
  
  

Atomic Radius
139.00 pm   
39
183.00 pm   
10

Covalent Radius
136.00 pm   
99+
199.00 pm   
12

Van der Waals Radius
175.00 pm   
36
236.00 pm   
16

Atomic Weight
47.87 amu   
99+
145.00 amu   
99+

Atomic Volume
9.09 cm3/mol   
99+
22.39 cm3/mol   
12

Adjacent Atomic Numbers
  
  

Previous Element
Iridium
  
Neodymium
  

Next Element
Gold
  
Samarium
  

Valence Electron Potential
392.42 (-eV)   
1
44.10 (-eV)   
39

Lattice Constant
392.42 pm   
24
Not Available   

Lattice Angles
π/2, π/2, π/2   
Unknown   

Lattice C/A Ratio
Not Available   
Not Available   

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