Radioactive Displacement Law OR Fajan's and Soddy Law

Radioactive Displacement Law OR Fajan's and Soddy Law

It describe which chemical element and isotope is created during the perticular type of radioactive decay.

(I)  Alpha - decay :

In alpha - decay, the mass number of the product number of the product nucleus is four less than that of decaying nucleus while the atomic number decreses by two.

            

(II) beta - decay :

In beta- decay, the mass number of product nucleus remains same but atomic number increases or decrease by one.

In beta -minus decay, as electron and an antinuetrino are created and emmited from the nuclues via the reaction given below :

                         

 

                    

                 

In beta -plus decay, a positron and neutrino are created and emmited from nuclues via the reaction given below                        

gamma - decay :

A ray is emmited when alpha or beta - decay results in a nucleus in an excited state. Atom then returns to grround state by a single photon transition or succesive transitions invloving more than on photon.

 

Post By : Ashish Maurya 29 May, 2020 181 views Physics