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Protactinium
Protactinium

Erbium
Erbium



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Protactinium
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Erbium

Atomic Structure of Protactinium and Erbium

Atomic

Atomic Number

Electron Configuration

Crystal Structure

Crystal Lattice

Number of Protons

Number of Neutrons

Number of Electrons

Atomic Radius

Covalent Radius

Van der Waals Radius

Atomic Weight

Atomic Volume

Previous Element

Next Element

Valence Electron Potential

Lattice Constant

Lattice Angles

Lattice C/A Ratio

 
91
[Rn] 5f2 6d1 7s2
Tetragonal (TETR)
TETR-Crystal-Structure-of-Protactinium.jpg#100
91
122
91
163.00 pm
200.00 pm
243.00 pm
231.04 amu
15.00 cm3/mol
16
15
92.00 (-eV)
392.50 pm
π/2, π/2, π/2
1.58
 
68
[Xe] 4f12 6s2
Hexagonal Close Packed (HCP)
HCP-Crystal-Structure-of-Erbium.jpg#100
68
99
68
176.00 pm
189.00 pm
0.00 pm
167.26 amu
18.40 cm3/mol
79
75
49.00 (-eV)
355.88 pm
π/2, π/2, 2 π/3
1.57