No Lead bonding and simple ionic bond

Atoms are arranged as close as possible in solid form to form a single substance in the form of metal or rare earth elements. Numbers of bonds per unit volume at a maximum while the bond energy per unit volume to a minimum. Crystal structure formed is a form of geometry in the space where the atoms are considered as rigid balls have same size. The maximum number of atoms, which can be arranged deskilling one atom in contact with all atoms, is 12. There are two forms of the composition of the hexagonal arrangement of the meeting (HCP) and cubic arrangement of the meeting (CCP) or face centered cube (FCC). Most metals that do not have the structure of the metal composition of the meeting is to outsmart (NA, K, etc.), and transition metals (Fe, Cr, W, etc.). All that body centered cubic structure have (BCC), the density structure in BCC is lower than the density of the HCP and FCC.

Rock salt crystal structure
Major anions arranged in the form of a cube and all place intersisil of 6 fold coordination filled by cations. A large number of compounds have a structure such that, for example MgO, CaO, MnO, TiC, ZrN, etc.

The structure of cesium chloride
In the structure of CsCl, CsBr, and Csl, the atoms occupy a place in the middle of the cube form the BCC structure formed by atoms of isomers. Cations and anions in the coordination of the two orders of magnitude 8.

Structure wurtzit
This structure has a hexagonal arrangement of the anion, and half of interstitial tertahedral filled by small cations. Compounds having this structure is a parrot, Zn), AIN, GaN, Inn, etc.

Zinc alloy structure and blen
Another structure that has the structure of zinc coordination tetrahedral blen. In this structure half of the cube arrangement interstitial tetrahedral meeting of anions in the contents of the small cations. Compounds II-IV include SnSe, ZnTe, CdS, CdSe, CdTe, and compound III-IV, including the AIP, AlSb, GaP, GaAs, GaSb, LNP, LnSb, BN cube and so on.

Rutile structure
Rutile (TiO2) has a unit structure slightly distorted from TiO6 octahedron formed by six oxygen ions, the center is occupied by Ti4 +. Cations fill the octahedral site is only partially available. This structure is owned by GeO2, PbO2, SrO2, MnO2, NbO2, TeO2, TiO2, VO2, WO2 and some other oxides, as well ZrF2, MgF2, CoF2 and other fluoride Kristal.

Ilmenite structure, alpha-aluminia
In this structure, oxygen ions are arranged in a hexagonal arrangement of meetings, and SL3 + ions filling two-thirds of the coordinated folding 6 in the layer arrangement of the meeting. This structure is a special structure where most octahedron AlO6 provide field-field. Compounds that have a structure are Cr2O3, Co2O3, Ti2O3, V2O3, Rh2O3, etc. Further compounds which have two kinds of cation Al3 + ions occupy the place in question the structure of alpha-alumina, namely ABO3 structure (A and B are different elements), called srtuktur ilmenite. Compounds that have the structure of this ilmenite are FeTiO3, MgTiO3, MnTiO3, CoTiO3, NiTiO3, etc.
Spinel structure
Snipel structural arrangement of atoms in a cubic arrangement of oxygen meeting. One-eighth of the tetrahedral arrangement of layers formed in the meeting of the O2-filled ion by divalent cations and half of the octahedral cations filled by trivalensi. One unit cell contains eight chemical units of the atoms. Chemical formulas of compounds that have a spinel structure represented by AB2O4 where:
A fill-ion and ion B tetrahedral  fill the octahedral or
-Half of the ion B filling the tetrahedral fill, the remaining ions A and B ions filling the octahedral.

Perovskite structure
The structure of the uttered above is based only on meeting arrangement of oxygen ions. But in the perovskite structure, partly berpastisipasi cations in the structure of the composition of the meeting. In perovskite, ion and O2 + O2-cube structure to form the composition of the meeting, and a small, Ti4 + ions are highly charged oktohedral occupy interstitial places.