1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f9 6s2
[Rn] 5f12 7s2
1.3 Crystal Structure
Hexagonal Close Packed (HCP)
Not Known
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
1.5.2 Covalent Radius
1.5.3 Van der Waals Radius
221.00 pm245.00 pm
139
348
1.6 Atomic Weight
158.93 amu257.00 amu
6.94
294
1.7 Atomic Volume
19.20 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
360.10 pmNA
228.58
891.25
1.11 Lattice Angles
1.12 Lattice C/A Ratio