1 Atomic
1.1 Atomic Number
2.2 Electron Configuration
[Xe] 4f14 6s2
[Xe] 4f4 6s2
2.3 Crystal Structure
Face Centered Cubic (FCC)
Double Hexagonal Close Packed (DHCP)
2.3.1 Crystal Lattice
2.4 Atom
2.4.1 Number of Protons
2.5.1 Number of Neutrons
2.6.1 Number of Electrons
2.9 Radius of an Atom
2.9.1 Atomic Radius
176.00 pm181.00 pm
112
265
2.9.2 Covalent Radius
187.00 pm201.00 pm
96
260
2.10.2 Van der Waals Radius
242.00 pm229.00 pm
139
348
2.11 Atomic Weight
173.05 amu144.24 amu
6.94
294
2.12 Atomic Volume
24.79 cm3/mol20.60 cm3/mol
1.39
71.07
2.14 Adjacent Atomic Numbers
2.14.1 Previous Element
2.14.2 Next Element
2.15 Valence Electron Potential
50.30 (-eV)43.40 (-eV)
8
392.42
2.16 Lattice Constant
548.47 pm365.80 pm
228.58
891.25
2.17 Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
2.18 Lattice C/A Ratio