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Lanthanum
Lanthanum

Polonium
Polonium



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Lanthanum
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Polonium

Atomic Structure of Lanthanum and Polonium

1 Atomic
1.1 Atomic Number
5784
Atomic Structure of Lithium
3 117
1.2 Electron Configuration
[Xe] 5d2 6s2
[Xe] 4f14 5d10 6s2 6p4
1.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Monoclinic (MON)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
5784
Atomic Structure of Lithium
3 117
1.4.2 Number of Neutrons
82125
Atomic Structure of Lithium
4 184
1.4.3 Number of Electrons
5784
Atomic Structure of Lithium
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
187.00 pm168.00 pm
Atomic Structure of Beryllium
112 265
1.5.2 Covalent Radius
207.00 pm140.00 pm
Atomic Structure of Beryllium
96 260
1.5.3 Van der Waals Radius
240.00 pm197.00 pm
Atomic Structure of Zinc
139 348
1.6 Atomic Weight
138.91 amu209.00 amu
Atomic Structure of Lithium
6.94 294
1.7 Atomic Volume
20.73 cm3/mol22.23 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
40.71 (-eV)NA
Atomic Structure of Francium
8 392.42
1.10 Lattice Constant
377.20 pm335.90 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
1.62NA
Atomic Structure of Beryllium
1.567 1.886