1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f4 6s2
[Rn] 5f3 6d1 7s2
1.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
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
181.00 pm156.00 pm
112
265
1.5.2 Covalent Radius
201.00 pm196.00 pm
96
260
1.5.3 Van der Waals Radius
229.00 pm186.00 pm
139
348
1.6 Atomic Weight
144.24 amu238.03 amu
6.94
294
1.7 Atomic Volume
20.60 cm3/mol12.59 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
43.40 (-eV)170.00 (-eV)
8
392.42
1.10 Lattice Constant
365.80 pm295.08 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