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Atomic Structure of Strontium and Americium


Atomic Structure of Americium and Strontium


Atomic Properties

Atomic Number
38   
99+
95   
23

Electron Configuration
[Kr] 5s2   
[Rn] 5f7 7s2   

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

Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100   
DHCP-Crystal-Structure-of-Americium.jpg#100   

Atom
  
  

Number of Protons
38   
99+
95   
23

Number of Neutrons
50   
99+
148   
12

Number of Electrons
38   
99+
95   
23

Radius of an Atom
  
  

Atomic Radius
215.00 pm   
5
173.00 pm   
21

Covalent Radius
195.00 pm   
15
180.00 pm   
21

Van der Waals Radius
249.00 pm   
7
244.00 pm   
10

Atomic Weight
87.62 amu   
99+
243.00 amu   
20

Atomic Volume
33.70 cm3/mol   
6
17.86 cm3/mol   
29

Adjacent Atomic Numbers
  
  

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Yttrium
  
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Valence Electron Potential
25.70 (-eV)   
99+
44.00 (-eV)   
40

Lattice Constant
608.49 pm   
6
346.81 pm   
99+

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

Lattice C/A Ratio
Not Available   
Not Available   

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