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Atomic Structure of Protactinium



Atomic

Atomic Number
91 27

Electron Configuration
[Rn] 5f2 6d1 7s2

Crystal Structure
Tetragonal (TETR)

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

Atom

Number of Protons
91 27

Number of Neutrons
122 22

Number of Electrons
91 27

Radius of an Atom

Atomic Radius
163.00 pm 27

Covalent Radius
200.00 pm 11

Van der Waals Radius
243.00 pm 15

Atomic Weight
231.04 amu 24

Atomic Volume
15.00 cm3/mol 50

Adjacent Atomic Numbers

Previous Element
16

Next Element
15

Valence Electron Potential
92.00 (-eV) 11

Lattice Constant
392.50 pm 26

Lattice Angles
π/2, π/2, π/2

Lattice C/A Ratio
1.58 36

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