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Erbium
Erbium

Tantalum
Tantalum



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Atomic Structure of Erbium and Tantalum

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1 Atomic
1.1 Atomic Number
6873
Atomic Structure of Lithium
3 117
1.2 Electron Configuration
[Xe] 4f12 6s2
[Xe] 4f14 5d3 6s2
1.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
6873
Atomic Structure of Lithium
3 117
1.4.2 Number of Neutrons
99108
Atomic Structure of Lithium
4 184
1.4.3 Number of Electrons
6873
Atomic Structure of Lithium
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
176.00 pm146.00 pm
Atomic Structure of Beryllium
112 265
1.5.2 Covalent Radius
189.00 pm170.00 pm
Atomic Structure of Beryllium
96 260
1.5.3 Van der Waals Radius
NA200.00 pm
Atomic Structure of Zinc
139 348
1.6 Atomic Weight
167.26 amu180.95 amu
Atomic Structure of Lithium
6.94 294
1.7 Atomic Volume
18.40 cm3/mol10.90 cm3/mol
Atomic Structure of 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
49.00 (-eV)110.00 (-eV)
Atomic Structure of Francium
8 392.42
1.10 Lattice Constant
355.88 pm330.13 pm
Atomic Structure of Beryllium
228.58 891.25
1.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
1.12 Lattice C/A Ratio
1.57NA
Atomic Structure of Beryllium
1.567 1.886