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Osmium
Osmium

Promethium
Promethium



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Osmium
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Promethium

Atomic Structure of Osmium and Promethium

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1 Atomic
1.1 Atomic Number
7661
Lithium
3 117
1.2 Electron Configuration
[Xe] 4f14 5d6 6s2
[Xe] 4f5 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
7661
Lithium
3 117
1.4.2 Number of Neutrons
11484
Lithium
4 184
1.4.3 Number of Electrons
7661
Lithium
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
133.80 pm183.00 pm
Beryllium
112 265
1.5.2 Covalent Radius
NA199.00 pm
Beryllium
96 260
1.5.3 Van der Waals Radius
216.00 pm236.00 pm
Zinc
139 348
1.6 Atomic Weight
190.23 amu145.00 amu
Lithium
6.94 294
1.7 Atomic Volume
8.49 cm3/mol22.39 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
91.40 (-eV)44.10 (-eV)
Francium
8 392.42
1.10 Lattice Constant
273.44 pmNA
Beryllium
228.58 891.25
1.11 Lattice Angles
π/2, π/2, 2 π/3
Unknown
1.12 Lattice C/A Ratio
1.58NA
Beryllium
1.567 1.886