1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Xe] 4f11 6s2
[Rn] 5f7 7s2
1.3 Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
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
176.00 pm173.00 pm
112
265
1.5.2 Covalent Radius
192.00 pm180.00 pm
96
260
1.5.3 Van der Waals Radius
216.00 pm244.00 pm
139
348
1.6 Atomic Weight
164.93 amu243.00 amu
6.94
294
1.7 Atomic Volume
18.70 cm3/mol17.86 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
47.90 (-eV)44.00 (-eV)
8
392.42
1.10 Lattice Constant
357.73 pm346.81 pm
228.58
891.25
1.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
1.12 Lattice C/A Ratio