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Atomic Structure of Americium and Calcium


Atomic Structure of Calcium and Americium


Atomic Properties

Atomic Number
95   
23
20   
99+

Electron Configuration
[Rn] 5f7 7s2   
[Ar] 4s2   

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

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

Atom
  
  

Number of Protons
95   
23
20   
99+

Number of Neutrons
148   
12
20   
99+

Number of Electrons
95   
23
20   
99+

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
197.00 pm   
6

Covalent Radius
180.00 pm   
21
176.00 pm   
22

Van der Waals Radius
244.00 pm   
10
231.00 pm   
19

Atomic Weight
243.00 amu   
20
40.08 amu   
99+

Atomic Volume
17.86 cm3/mol   
29
29.90 cm3/mol   
7

Adjacent Atomic Numbers
  
  

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Curium
  
Scandium
  

Valence Electron Potential
44.00 (-eV)   
40
29.00 (-eV)   
99+

Lattice Constant
346.81 pm   
99+
558.84 pm   
9

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

Lattice C/A Ratio
Not Available   
Not Available   

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