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Atomic Structure of Radium and Scandium


Atomic Structure of Scandium and Radium


Atomic Properties

Atomic Number
88   
30
21   
99+

Electron Configuration
[Rn] 7s2   
[Ar] 3d1 4s2   

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

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

Atom
  
  

Number of Protons
88   
30
21   
99+

Number of Neutrons
138   
16
24   
99+

Number of Electrons
88   
30
21   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
162.00 pm   
26

Covalent Radius
221.00 pm   
3
170.00 pm   
25

Van der Waals Radius
283.00 pm   
4
211.00 pm   
25

Atomic Weight
226.00 amu   
26
44.96 amu   
99+

Atomic Volume
45.20 cm3/mol   
4
15.00 cm3/mol   
34

Adjacent Atomic Numbers
  
  

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Actinium
  
Titanium
  

Valence Electron Potential
20.10 (-eV)   
99+
58.00 (-eV)   
24

Lattice Constant
514.80 pm   
13
330.90 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.59   
7

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