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Thorium
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Protactinium
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Thorium
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Protactinium
Atomic Structure of Thorium and Protactinium
Thorium
Protactinium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Atomic
Atomic Number
90
91
3
117
👆🏻
Electron Configuration
[Rn] 6d
2
7s
2
[Rn] 5f
2
6d
1
7s
2
Crystal Structure
Face Centered Cubic (FCC)
Tetragonal (TETR)
Crystal Lattice
Atom
Number of Protons
90
91
3
117
👆🏻
Number of Neutrons
142
122
4
285
👆🏻
Number of Electrons
90
91
3
117
👆🏻
Radius of an Atom
Atomic Radius
179.80 pm
163.00 pm
0
348
👆🏻
Covalent Radius
206.00 pm
200.00 pm
0
260
👆🏻
Van der Waals Radius
237.00 pm
243.00 pm
0
348
👆🏻
Atomic Weight
232.04 amu
231.04 amu
6.94
294
👆🏻
Atomic Volume
19.90 cm3/mol
15.00 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
59.30 (-eV)
92.00 (-eV)
0
392.42
👆🏻
Lattice Constant
508.42 pm
392.50 pm
0
891.25
👆🏻
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
1.10
1.58
0.423
1.9
👆🏻
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Actinide Series
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Californium
Einsteinium
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Neptunium
Americium
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Actinide Series
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Lawrencium
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Compare Actinide Series
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Protactinium vs Californium
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Protactinium vs Einsteinium
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Protactinium vs Actinium
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