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Atomic Structure of Potassium and Thulium


Atomic Structure of Thulium and Potassium


Atomic

Atomic Number
19  
99+
69  
99+

Electron Configuration
[Ar] 4s1  
[Xe] 4f13 6s2  

Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  

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

Atom
  
  

Number of Protons
19  
99+
69  
99+

Number of Neutrons
20  
99+
100  
33

Number of Electrons
19  
99+
69  
99+

Radius of an Atom
  
  

Atomic Radius
227.00 pm  
4
176.00 pm  
20

Covalent Radius
203.00 pm  
9
160.00 pm  
32

Van der Waals Radius
275.00 pm  
7
227.00 pm  
26

Atomic Weight
39.10 amu  
99+
168.93 amu  
99+

Atomic Volume
45.46 cm3/mol  
4
18.10 cm3/mol  
40

Adjacent Atomic Numbers
  
  

Previous Element
Aluminium
  
Erbium
  

Next Element
Calcium
  
Ytterbium
  

Valence Electron Potential
10.40 (-eV)  
99+
49.70 (-eV)  
29

Lattice Constant
532.80 pm  
13
353.75 pm  
99+

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

Lattice C/A Ratio
1.69  
10
1.57  
40

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