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Atomic Structure of Holmium and Radium


Atomic Structure of Radium and Holmium


Atomic Properties

Atomic Number
67   
99+
88   
30

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

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

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

Atom
  
  

Number of Protons
67   
99+
88   
30

Number of Neutrons
98   
34
138   
16

Number of Electrons
67   
99+
88   
30

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
Not Available   

Covalent Radius
192.00 pm   
17
221.00 pm   
3

Van der Waals Radius
216.00 pm   
24
283.00 pm   
4

Atomic Weight
164.93 amu   
99+
226.00 amu   
26

Atomic Volume
18.70 cm3/mol   
24
45.20 cm3/mol   
4

Adjacent Atomic Numbers
  
  

Previous Element
Dysprosium
  
Francium
  

Next Element
Erbium
  
Actinium
  

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

Lattice Constant
357.73 pm   
38
514.80 pm   
13

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

Lattice C/A Ratio
1.57   
17
Not Available   

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