1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f6 6s2
[Rn] 5f14 6d6 7s2
1.3 Crystal Structure
Rhombohedral (RHO)
Hexagonal Close Packed (HCP)
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 pm126.00 pm
112
265
1.5.2 Covalent Radius
198.00 pm134.00 pm
96
260
1.5.3 Van der Waals Radius
1.6 Atomic Weight
150.36 amu269.00 amu
6.94
294
1.7 Atomic Volume
19.95 cm3/molNA
1.39
71.07
1.8 Adjacent Atomic Numbers
1.8.1 Previous Element
1.8.2 Next Element
1.9 Valence Electron Potential
1.10 Lattice Constant
362.10 pmNA
228.58
891.25
1.11 Lattice Angles
1.12 Lattice C/A Ratio