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Atomic Structure of Berkelium and Erbium


Atomic Structure of Erbium and Berkelium


Atomic Properties

Atomic Number
97   
21
68   
99+

Electron Configuration
[Rn] 5f9 7s2   
[Xe] 4f12 6s2   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
DHCP-Crystal-Structure-of-Berkelium.jpg#100   
HCP-Crystal-Structure-of-Erbium.jpg#100   

Atom
  
  

Number of Protons
97   
21
68   
99+

Number of Neutrons
150   
11
99   
33

Number of Electrons
97   
21
68   
99+

Radius of an Atom
  
  

Atomic Radius
170.00 pm   
22
176.00 pm   
18

Covalent Radius
Not Available   
189.00 pm   
19

Atomic Weight
247.00 amu   
18
167.26 amu   
99+

Atomic Volume
Not Available   
18.40 cm3/mol   
25

Adjacent Atomic Numbers
  
  

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Thulium
  

Valence Electron Potential
45.50 (-eV)   
36
49.00 (-eV)   
29

Lattice Constant
341.60 pm   
99+
355.88 pm   
39

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

Lattice C/A Ratio
Not Available   
1.57   
17

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