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Atomic Structure of Protactinium

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Atomic Properties of Protactinium

Atomic Number

Electron Configuration
[Rn] 5f2 6d1 7s2

Crystal Structure
Tetragonal (TETR)

Crystal Lattice

Atom of Protactinium

Number of Protons

Number of Neutrons

Number of Electrons

Radius of an Atom

Atomic Radius
163.00 pm

Covalent Radius
200.00 pm

Van der Waals Radius
243.00 pm

Atomic Weight
231.04 amu

Atomic Volume
15.00 cm3/mol

Adjacent Atomic Numbers

Previous Element

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Valence Electron Potential
92.00 (-eV)

Lattice Constant
392.50 pm

Lattice Angles
π/2, π/2, π/2

Lattice C/A Ratio
Not Available

Protactinium Atomic Structure

Protactinium atomic structure provides properties of its atom. Atomic structure of Protactinium includes atomic number, atomic weight, electron configuration, atomic radius, etc. The atom or the nucleus of this metal consists of 91 protons, 122 neutrons and 91 electrons. Apart from the atomic structure of Protactinium, you can find amazing information and interesting Facts About Protactinium. The lattice constant and lattice Angles, refers to the physical dimension of its unit cells. 3D lattices generally have three lattice constants which are commonly referred as a, b, and c and their respective values are π/2, π/2, π/2 and its constat's value is 392.50 pm.

Protactinium Atomic Number

The atomic number of Protactinium is 91. Protactinium atomic number signifies the total number of protons or electrons present inside its atom. Under normal conditions, the number of electrons and protons are equal, making the net charge of an atom return to zero. Atomic structure of Protactinium depends upon the total number of electrons, neutrons and protons present in its nucleus. Atomic number largely determines the atomic size, electronegativity, valency and other such factors. Atomic weight is the weight of the atom as whole, the weight corresponding to all the atomic particles. The atomic weight of Protactinium is 231.04 amu whereas its volume is 15.00 cm3/mol. Atomic radius of Protactinium is 163.00 pm and its covalent radius is 200.00 pm.

Protactinium Electron Configuration

Protactinium electron configuration explains the electron distribution in different orbits of the atom. The electron configuration plays a significant role in determining the position of Protactinium In Periodic Table. The electron configuration of Protactinium is [Rn] 5f2 6d1 7s2. The value of valence electron potential of this element is 92.00 (-eV). It is calculated using (-eV)= kn/r equation.

Crystal Structure of Protactinium

Crystal structure of Protactinium plays an important role in determining the other Physical Properties of Protactinium. Its crystal structure shows the unique arrangement of atoms inside a crystal which helps in deconding the atomic structure of Protactinium metal. Protactinium crystal structure is Tetragonal (TETR). The tetragonal crystal structure occur as a result of stretching a cubic lattice along one of its lattice vectors due to which cube becomes a rectangular prism with a square base (a by a) and height (c, which is different from a). All these atomic properties of Protactinium are related to its atomic structure.