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Tantalum
Tantalum

Polonium
Polonium



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Tantalum
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Polonium

Atomic Structure of Tantalum and Polonium

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1 Atomic
1.1 Atomic Number
7384
3 117
1.2 Electron Configuration
[Xe] 4f14 5d3 6s2
[Xe] 4f14 5d10 6s2 6p4
1.3 Crystal Structure
Body Centered Cubic (BCC)
Monoclinic (MON)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
7384
3 117
1.4.2 Number of Neutrons
108125
4 184
1.4.3 Number of Electrons
7384
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
146.00 pm168.00 pm
112 265
1.5.2 Covalent Radius
170.00 pm140.00 pm
96 260
1.5.3 Van der Waals Radius
200.00 pm197.00 pm
139 348
1.6 Atomic Weight
180.95 amu209.00 amu
6.94 294
1.7 Atomic Volume
10.90 cm3/mol22.23 cm3/mol
1.39 71.07
1.8 Adjacent Atomic Numbers
1.8.1 Previous Element
1.8.2 Next Element
1.9 Valence Electron Potential
110.00 (-eV)NA
8 392.42
1.10 Lattice Constant
330.13 pm335.90 pm
228.58 891.25
1.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
1.12 Lattice C/A Ratio
NANA
1.567 1.886