1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f7 6s2
[Xe] 4f5 6s2
1.3 Crystal Structure
Body Centered Cubic (BCC)
Double Hexagonal Close Packed (DHCP)
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
180.00 pm183.00 pm
112
265
1.5.2 Covalent Radius
198.00 pm199.00 pm
96
260
1.5.3 Van der Waals Radius
233.00 pm236.00 pm
139
348
1.6 Atomic Weight
151.96 amu145.00 amu
6.94
294
1.7 Atomic Volume
28.90 cm3/mol22.39 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
45.60 (-eV)44.10 (-eV)
8
392.42
1.10 Lattice Constant
458.10 pmNA
228.58
891.25
1.11 Lattice Angles
1.12 Lattice C/A Ratio