Silica, diamond, graphite, sulfur, phosphorus, and the number of covalent bonds in the cause of red phosphorus
Graphite layer structure, interlayer interatomic Fan Dehua force, and p orbital overlap. A layer of non covalent covalent bonds arranged in regular hexagons. Each carbon atom is bonded by 3 SP2 hybrid orbitals with 1.5mol covalent bonds.
The diamond structure is similar to that of silica. Each carbon atom has four covalent bonds, and the space regular tetrahedron is arranged periodically. A total of 1 x 4 / 2=2mol covalent bond.
Silicon dioxide and silicon oxygen tetrahedron space arrangement, each oxygen atom has two covalent bonds to connect silicon atoms, a silicon atom has four covalent bonds to connect oxygen atoms. Therefore, there are 4mol covalent bonds.
