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Thorium
Thorium

Fermium
Fermium



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Fermium

Atomic Structure of Thorium and Fermium

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1 Atomic
1.1 Atomic Number
90100
Lithium
3 117
1.2 Electron Configuration
[Rn] 6d2 7s2
[Rn] 5f12 7s2
1.3 Crystal Structure
Face Centered Cubic (FCC)
Not Known
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
90100
Lithium
3 117
1.4.2 Number of Neutrons
142157
Lithium
4 184
1.4.3 Number of Electrons
90100
Lithium
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
179.80 pmNA
Beryllium
112 265
1.5.2 Covalent Radius
206.00 pmNA
Beryllium
96 260
1.5.3 Van der Waals Radius
237.00 pm245.00 pm
Zinc
139 348
1.6 Atomic Weight
232.04 amu257.00 amu
Lithium
6.94 294
1.7 Atomic Volume
19.90 cm3/molNA
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
59.30 (-eV)NA
Francium
8 392.42
1.10 Lattice Constant
508.42 pmNA
Beryllium
228.58 891.25
1.11 Lattice Angles
π/2, π/2, π/2
NA
1.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886