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Atomic Structure of Francium and Holmium


Atomic Structure of Holmium and Francium


Atomic Properties

Atomic Number
87   
31
67   
99+

Electron Configuration
[Rn] 7s1   
[Xe] 4f11 6s2   

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Holmium.jpg#100   

Atom
  
  

Number of Protons
87   
31
67   
99+

Number of Neutrons
136   
17
98   
34

Number of Electrons
87   
31
67   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
176.00 pm   
18

Covalent Radius
260.00 pm   
1
192.00 pm   
17

Van der Waals Radius
348.00 pm   
1
216.00 pm   
24

Atomic Weight
223.00 amu   
27
164.93 amu   
99+

Atomic Volume
Not Available   
18.70 cm3/mol   
24

Adjacent Atomic Numbers
  
  

Previous Element
Polonium
  
Dysprosium
  

Next Element
Radium
  
Erbium
  

Valence Electron Potential
8.00 (-eV)   
99+
47.90 (-eV)   
31

Lattice Constant
Not Available   
357.73 pm   
38

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

Lattice C/A Ratio
Not Available   
1.57   
17

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