%0 Journal Article %T Periodicity of the Clifford Algebras %A B. Askari %A F. Fattahi %J Mathematical Sciences Quarterly Journal %D 2011 %I Springer %X In this paper we study the structure of Clifford Algebras$Cl_{p,q}$ associated with a non degenerate symmetric bilinearform of signature $(p,q),$ where $p,q$ are positive integer. Alsowe present a description of these algebras as matrix algebras,and then we will discuss the periodicity of these algebrascompletely. As a consequence, We create the related algebramatrix tables for these algebras, when $0leq pleq 8$ and$8leq qleq 13.$ We also present an isomorphism between$Cl^0_{q,p}$ and $Cl^0_{p,q}.$ %K Tensor algebra %K Exterior algebra %K Clifford algebra %K Quadratic form %K Bilinear form. %U http://mathscience.kiau.ac.ir/Content/Vol5No1/6.pdf