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Atomic Structure of Chromium and Erbium


Atomic Structure of Erbium and Chromium


Atomic Properties

Atomic Number
24   
99+
68   
99+

Electron Configuration
[Ar] 3d5 4s1   
[Xe] 4f12 6s2   

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

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

Atom
  
  

Number of Protons
24   
99+
68   
99+

Number of Neutrons
28   
99+
99   
33

Number of Electrons
24   
99+
68   
99+

Radius of an Atom
  
  

Atomic Radius
128.00 pm   
99+
176.00 pm   
18

Covalent Radius
139.00 pm   
99+
189.00 pm   
19

Van der Waals Radius
200.00 pm   
28
Not Available   

Atomic Weight
52.00 amu   
99+
167.26 amu   
99+

Atomic Volume
7.23 cm3/mol   
99+
18.40 cm3/mol   
25

Adjacent Atomic Numbers
  
  

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Manganese
  
Thulium
  

Valence Electron Potential
170.00 (-eV)   
4
49.00 (-eV)   
29

Lattice Constant
291.00 pm   
99+
355.88 pm   
39

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

Lattice C/A Ratio
Not Available   
1.57   
17

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