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Atomic Structure of Thallium and Yttrium


Atomic Structure of Yttrium and Thallium


Atomic Properties

Atomic Number
81   
35
39   
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Kr] 4d1 5s2   

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

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

Atom
  
  

Number of Protons
81   
35
39   
99+

Number of Neutrons
123   
20
50   
99+

Number of Electrons
81   
35
39   
99+

Radius of an Atom
  
  

Atomic Radius
170.00 pm   
22
180.00 pm   
14

Covalent Radius
145.00 pm   
39
190.00 pm   
18

Van der Waals Radius
196.00 pm   
30
200.00 pm   
28

Atomic Weight
204.38 amu   
31
88.91 amu   
99+

Atomic Volume
17.20 cm3/mol   
31
19.80 cm3/mol   
21

Adjacent Atomic Numbers
  
  

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Strontium
  

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Lead
  
Zirconium
  

Valence Electron Potential
9.60 (-eV)   
99+
48.00 (-eV)   
30

Lattice Constant
345.66 pm   
99+
364.74 pm   
31

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

Lattice C/A Ratio
1.60   
6
1.57   
16

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