1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f13 6s2
[Rn] 5f4 6d1 7s2
1.3 Crystal Structure
Hexagonal Close Packed (HCP)
Orthorhombic (ORTH)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
1.4.2 Number of Neutrons
1.4.3 Number of Electrons
1.5 Radius of an Atom
1.5.1 Atomic Radius
176.00 pm155.00 pm
112
265
1.5.2 Covalent Radius
160.00 pm190.00 pm
96
260
1.5.3 Van der Waals Radius
1.6 Atomic Weight
168.93 amu237.00 amu
6.94
294
1.7 Atomic Volume
18.10 cm3/mol11.62 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
49.70 (-eV)96.00 (-eV)
8
392.42
1.10 Lattice Constant
353.75 pm666.30 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