1 Atomic
1.1 Atomic Number
1.2 Electron Configuration
[Rn] 5f9 7s2
[Xe] 4f9 6s2
1.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
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
170.00 pm178.00 pm
112
265
1.5.2 Covalent Radius
1.5.3 Van der Waals Radius
1.6 Atomic Weight
247.00 amu162.50 amu
6.94
294
1.7 Atomic Volume
NA19.00 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
45.50 (-eV)47.40 (-eV)
8
392.42
1.10 Lattice Constant
341.60 pm359.30 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