1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f5 6s2
[Xe] 4f14 6s2
1.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Face Centered Cubic (FCC)
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
183.00 pm176.00 pm
112
265
1.5.2 Covalent Radius
199.00 pm187.00 pm
96
260
1.5.3 Van der Waals Radius
236.00 pm242.00 pm
139
348
1.6 Atomic Weight
145.00 amu173.05 amu
6.94
294
1.7 Atomic Volume
22.39 cm3/mol24.79 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
44.10 (-eV)50.30 (-eV)
8
392.42
1.10 Lattice Constant
NA548.47 pm
228.58
891.25
1.11 Lattice Angles
1.12 Lattice C/A Ratio