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Osmium
Osmium

Lanthanum
Lanthanum



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Osmium
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Lanthanum

Atomic Structure of Osmium and Lanthanum

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1 Atomic
1.1 Atomic Number
7657
3 117
1.2 Electron Configuration
[Xe] 4f14 5d6 6s2
[Xe] 5d2 6s2
1.3 Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
7657
3 117
1.4.2 Number of Neutrons
11482
4 184
1.4.3 Number of Electrons
7657
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
133.80 pm187.00 pm
112 265
1.5.2 Covalent Radius
NA207.00 pm
96 260
1.5.3 Van der Waals Radius
216.00 pm240.00 pm
139 348
1.6 Atomic Weight
190.23 amu138.91 amu
6.94 294
1.7 Atomic Volume
8.49 cm3/mol20.73 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
91.40 (-eV)40.71 (-eV)
8 392.42
1.10 Lattice Constant
273.44 pm377.20 pm
228.58 891.25
1.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
1.12 Lattice C/A Ratio
1.581.62
1.567 1.886