The lattice points are touching one another but not in the most efficient way. In other words, we are creating a lot of empty space between the atoms. In order to generate the simple cubic structure, ...

It melts at 1410 C. The electronic configuration of the silicon atom is: (Ne)(3s) 2 (3p) 2, and the atomic radius is 0.132 nm. Silicon has the diamond cubic crystal structure with a lattice parameter ...

the cubic zinc blend (top diagram) and the hexagonal Wurtzite (lower diagram). In the zinc blend structure the sulphur ions form an fcc structure and the zinc ions occupy half of the tetrahedral sites ...

At the most fundamental level, the shape of pyrite crystals is dictated by its atomic structure and the laws of chemistry and physics. Pyrite’s cubic symmetry arises from its atomic lattice ...