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Atomic Structure of Yttrium and Lanthanum


Atomic Structure of Lanthanum and Yttrium


Atomic Properties

Atomic Number
39   
99+
57   
99+

Electron Configuration
[Kr] 4d1 5s2   
[Xe] 5d2 6s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100   
DHCP-Crystal-Structure-of-Lanthanum.jpg#100   

Atom
  
  

Number of Protons
39   
99+
57   
99+

Number of Neutrons
50   
99+
82   
99+

Number of Electrons
39   
99+
57   
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
187.00 pm   
8

Covalent Radius
190.00 pm   
18
207.00 pm   
6

Van der Waals Radius
200.00 pm   
28
240.00 pm   
13

Atomic Weight
88.91 amu   
99+
138.91 amu   
99+

Atomic Volume
19.80 cm3/mol   
21
20.73 cm3/mol   
16

Adjacent Atomic Numbers
  
  

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Strontium
  
Barium
  

Next Element
Zirconium
  
Cerium
  

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

Lattice Constant
364.74 pm   
31
377.20 pm   
28

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

Lattice C/A Ratio
1.57   
16
1.62   
2

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