1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f1 5d1 6s2
[Xe] 4f6 6s2
1.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Rhombohedral (RHO)
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
181.80 pm180.00 pm
112
265
1.5.2 Covalent Radius
204.00 pm198.00 pm
96
260
1.5.3 Van der Waals Radius
235.00 pm229.00 pm
139
348
1.6 Atomic Weight
140.12 amu150.36 amu
6.94
294
1.7 Atomic Volume
20.67 cm3/mol19.95 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
41.78 (-eV)44.80 (-eV)
8
392.42
1.10 Lattice Constant
362.00 pm362.10 pm
228.58
891.25
1.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
1.12 Lattice C/A Ratio