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Atomic Structure of Osmium and Americium


Atomic Structure of Americium and Osmium


Atomic Properties

Atomic Number
76   
40
95   
23

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

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

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

Atom
  
  

Number of Protons
76   
39
95   
23

Number of Neutrons
114   
25
148   
12

Number of Electrons
76   
39
95   
23

Radius of an Atom
  
  

Atomic Radius
133.80 pm   
99+
173.00 pm   
21

Covalent Radius
Not Available   
180.00 pm   
21

Van der Waals Radius
216.00 pm   
24
244.00 pm   
10

Atomic Weight
190.23 amu   
35
243.00 amu   
20

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

Adjacent Atomic Numbers
  
  

Previous Element
Rhenium
  
Plutonium
  

Next Element
Iridium
  
Curium
  

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

Lattice Constant
273.44 pm   
99+
346.81 pm   
99+

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

Lattice C/A Ratio
1.58   
14
Not Available   

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