Titanium atomic number is 22, number of extranuclear electron with a total of 22, the electron configuration of 1 s squared 2 s squared 2 p ⁶ 3 s squared 3 p ⁶ 3 d squared 4 s squared ([Ar] 3 d squared 4 s squared). There are two isomers of titanium: alpha-Ti and β-Ti. The atomic packing mode of α-Ti is hexagonal, and the atomic space utilization rate is 74%. β-Ti is a cubic lattice, and the atomic packing mode is body-centered cubic dense packing, and the atomic space utilization rate is 68%. In addition, a small number of defects in titanium crystals will affect the properties of the crystal, such as mechanical strength, electrical conductivity and so on.