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Atomic Structure of Americium and Osmium


Atomic Structure of Osmium and Americium


Atomic Properties

Atomic Number
95   
23
76   
40

Electron Configuration
[Rn] 5f7 7s2   
[Xe] 4f14 5d6 6s2   

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

Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
95   
23
76   
39

Number of Neutrons
148   
12
114   
25

Number of Electrons
95   
23
76   
39

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
133.80 pm   
99+

Covalent Radius
180.00 pm   
21
Not Available   

Van der Waals Radius
244.00 pm   
10
216.00 pm   
24

Atomic Weight
243.00 amu   
20
190.23 amu   
35

Atomic Volume
17.86 cm3/mol   
29
8.49 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Rhenium
  

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Curium
  
Iridium
  

Valence Electron Potential
44.00 (-eV)   
40
91.40 (-eV)   
12

Lattice Constant
346.81 pm   
99+
273.44 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.58   
14

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