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Atomic Structure of Thallium and Neptunium


Atomic Structure of Neptunium and Thallium


Atomic Properties

Atomic Number
81   
35
93   
25

Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Rn] 5f4 6d1 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Orthorhombic (ORTH)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
ORTH-Crystal-Structure-of-Neptunium.jpg#100   

Atom
  
  

Number of Protons
81   
35
93   
25

Number of Neutrons
123   
20
144   
14

Number of Electrons
81   
35
93   
25

Radius of an Atom
  
  

Atomic Radius
170.00 pm   
22
155.00 pm   
30

Covalent Radius
145.00 pm   
39
190.00 pm   
18

Van der Waals Radius
196.00 pm   
30
221.00 pm   
22

Atomic Weight
204.38 amu   
31
237.00 amu   
22

Atomic Volume
17.20 cm3/mol   
31
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Mercury
  
Uranium
  

Next Element
Lead
  
Plutonium
  

Valence Electron Potential
9.60 (-eV)   
99+
96.00 (-eV)   
9

Lattice Constant
345.66 pm   
99+
666.30 pm   
3

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

Lattice C/A Ratio
1.60   
6
Not Available   

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