1 Atomic
1.1 Atomic Number
2.5 Electron Configuration
[Xe] 4f12 6s2
[Rn] 5f7 7s2
2.6 Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
2.6.1 Crystal Lattice
2.7 Atom
2.7.1 Number of Protons
2.7.3 Number of Neutrons
2.7.5 Number of Electrons
2.8 Radius of an Atom
2.8.1 Atomic Radius
176.00 pm173.00 pm
112
265
2.8.3 Covalent Radius
189.00 pm180.00 pm
96
260
3.2.4 Van der Waals Radius
3.3 Atomic Weight
167.26 amu243.00 amu
6.94
294
4.2 Atomic Volume
18.40 cm3/mol17.86 cm3/mol
1.39
71.07
4.4 Adjacent Atomic Numbers
4.4.1 Previous Element
4.4.2 Next Element
4.5 Valence Electron Potential
49.00 (-eV)44.00 (-eV)
8
392.42
4.7 Lattice Constant
355.88 pm346.81 pm
228.58
891.25
4.9 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
4.10 Lattice C/A Ratio