👉 Tetrathecal is a concept in physics and chemistry used to describe the arrangement of atoms in a crystal lattice. It refers to the arrangement of electrons, ions, or other particles within a crystalline structure, which can be described as a tetrahedron. In a tetrathene (a type of cubic lattice) the atoms are arranged like tetrahedra. This is because the tetrathenes have only two types of atoms in their structure: carbon and hydrogen, with