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Atomic Structure of Cesium and Protactinium


Atomic Structure of Protactinium and Cesium


Atomic

Atomic Number
55  
99+
91  
27

Electron Configuration
[Xe] 6s1  
[Rn] 5f2 6d1 7s2  

Crystal Structure
Body Centered Cubic (BCC)  
Tetragonal (TETR)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
TETR-Crystal-Structure-of-Protactinium.jpg#100  

Atom
  
  

Number of Protons
55  
99+
91  
27

Number of Neutrons
78  
99+
122  
22

Number of Electrons
55  
99+
91  
27

Radius of an Atom
  
  

Atomic Radius
265.00 pm  
2
163.00 pm  
27

Covalent Radius
244.00 pm  
2
200.00 pm  
11

Van der Waals Radius
343.00 pm  
2
243.00 pm  
15

Atomic Weight
132.91 amu  
99+
231.04 amu  
24

Atomic Volume
71.07 cm3/mol  
1
15.00 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Tin
  
Thorium
  

Next Element
Barium
  
Uranium
  

Valence Electron Potential
8.62 (-eV)  
99+
92.00 (-eV)  
11

Lattice Constant
614.10 pm  
5
392.50 pm  
26

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

Lattice C/A Ratio
1.87  
3
1.58  
36

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