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Atomic Structure of Thulium and Berkelium


Atomic Structure of Berkelium and Thulium


Atomic Properties

Atomic Number
69   
99+
97   
21

Electron Configuration
[Xe] 4f13 6s2   
[Rn] 5f9 7s2   

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

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

Atom
  
  

Number of Protons
69   
99+
97   
21

Number of Neutrons
100   
32
150   
11

Number of Electrons
69   
99+
97   
21

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
170.00 pm   
22

Covalent Radius
160.00 pm   
30
Not Available   

Atomic Weight
168.93 amu   
99+
247.00 amu   
18

Atomic Volume
18.10 cm3/mol   
28
Not Available   

Adjacent Atomic Numbers
  
  

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Erbium
  
Curium
  

Next Element
Ytterbium
  

Valence Electron Potential
49.70 (-eV)   
28
45.50 (-eV)   
36

Lattice Constant
353.75 pm   
40
341.60 pm   
99+

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

Lattice C/A Ratio
1.57   
17
Not Available   

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