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Erbium
Erbium

Fermium
Fermium



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Atomic Structure of Erbium and Fermium

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1 Atomic
1.1 Atomic Number
68100
Atomic Structure of Lithium
3 117
1.2 Electron Configuration
[Xe] 4f12 6s2
[Rn] 5f12 7s2
1.3 Crystal Structure
Hexagonal Close Packed (HCP)
Not Known
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
68100
Atomic Structure of Lithium
3 117
1.4.2 Number of Neutrons
99157
Atomic Structure of Lithium
4 184
1.4.3 Number of Electrons
68100
Atomic Structure of Lithium
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
176.00 pmNA
Atomic Structure of Beryllium
112 265
1.5.2 Covalent Radius
189.00 pmNA
Atomic Structure of Beryllium
96 260
1.5.3 Van der Waals Radius
NA245.00 pm
Atomic Structure of Zinc
139 348
1.6 Atomic Weight
167.26 amu257.00 amu
Atomic Structure of Lithium
6.94 294
1.7 Atomic Volume
18.40 cm3/molNA
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
49.00 (-eV)NA
Atomic Structure of Francium
8 392.42
1.10 Lattice Constant
355.88 pmNA
Atomic Structure of Beryllium
228.58 891.25
1.11 Lattice Angles
π/2, π/2, 2 π/3
NA
1.12 Lattice C/A Ratio
1.57NA
Atomic Structure of Beryllium
1.567 1.886