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Tantalum
Tantalum

Technetium
Technetium



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Tantalum
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Technetium

Atomic Structure of Tantalum and Technetium

1 Atomic
1.1 Atomic Number
7343
Lithium
3 117
1.2 Electron Configuration
[Xe] 4f14 5d3 6s2
[Kr] 4d5 5s2
1.3 Crystal Structure
Body Centered Cubic (BCC)
Hexagonal Close Packed (HCP)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
7343
Lithium
3 117
1.4.2 Number of Neutrons
10855
Lithium
4 184
1.4.3 Number of Electrons
7343
Lithium
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
146.00 pm136.00 pm
Beryllium
112 265
1.5.2 Covalent Radius
170.00 pm147.00 pm
Beryllium
96 260
1.5.3 Van der Waals Radius
200.00 pm200.00 pm
Zinc
139 348
1.6 Atomic Weight
180.95 amu98.00 amu
Lithium
6.94 294
1.7 Atomic Volume
10.90 cm3/mol8.50 cm3/mol
Manganese
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)180.00 (-eV)
Francium
8 392.42
1.10 Lattice Constant
330.13 pm273.50 pm
Beryllium
228.58 891.25
1.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
1.12 Lattice C/A Ratio
NA1.60
Beryllium
1.567 1.886