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Hafnium
Hafnium

Polonium
Polonium



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Hafnium
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Polonium

Atomic Structure of Hafnium and Polonium

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1 Atomic
1.1 Atomic Number
7284
3 117
1.2 Electron Configuration
[Xe] 4f14 5d2 6s2
[Xe] 4f14 5d10 6s2 6p4
1.3 Crystal Structure
Hexagonal Close Packed (HCP)
Monoclinic (MON)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
7284
3 117
1.4.2 Number of Neutrons
106125
4 184
1.4.3 Number of Electrons
7284
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
159.00 pm168.00 pm
112 265
1.5.2 Covalent Radius
175.00 pm140.00 pm
96 260
1.5.3 Van der Waals Radius
200.00 pm197.00 pm
139 348
1.6 Atomic Weight
178.49 amu209.00 amu
6.94 294
1.7 Atomic Volume
13.60 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
81.00 (-eV)NA
8 392.42
1.10 Lattice Constant
319.64 pm335.90 pm
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
1.58NA
1.567 1.886