Home

Transition Metals + -

Actinide Metals + -

Lanthanide Metals + -

Post-Transition Metals + -

Alkaline Earth Metals + -

Compare Metals


Atomic Structure of Protactinium and Polonium


Atomic Structure of Polonium and Protactinium


Atomic Properties

Atomic Number
91   
27
84   
32

Electron Configuration
[Rn] 5f2 6d1 7s2   
[Xe] 4f14 5d10 6s2 6p4   

Crystal Structure
Tetragonal (TETR)   
Monoclinic (MON)   

Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100   
MON-Crystal-Structure-of-Polonium.jpg#100   

Atom
  
  

Number of Protons
91   
27
84   
32

Number of Neutrons
122   
21
125   
19

Number of Electrons
91   
27
84   
32

Radius of an Atom
  
  

Atomic Radius
163.00 pm   
25
168.00 pm   
23

Covalent Radius
200.00 pm   
11
140.00 pm   
99+

Van der Waals Radius
243.00 pm   
11
197.00 pm   
29

Atomic Weight
231.04 amu   
24
209.00 amu   
28

Atomic Volume
15.00 cm3/mol   
34
22.23 cm3/mol   
13

Adjacent Atomic Numbers
  
  

Previous Element
Thorium
  
Bismuth
  

Next Element
Uranium
  
Francium
  

Valence Electron Potential
92.00 (-eV)   
11
Not Available   

Lattice Constant
392.50 pm   
23
335.90 pm   
99+

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

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical >>
<< Chemical

Compare Actinide Series

Actinide Metals

Actinide Metals

» More Actinide Metals

Compare Actinide Series

» More Compare Actinide Series