What is electron configuration of atom ? Explain its method by example.

Explanation

The distribution of electron into orbitals of an atm in called its electronic configuration
method -1 : The subshell is represented by the respectivey letter symbol and the number of electrons present in the subshell is depicted as subshell represented for different shells is number before the respective subshell.
Example : Electron configuration express by orbital notation of B (z=5) (z= 6) are as under

Method -2 : (Electron configuration by orbital each orbital of the subshell is represented by box is as under

the electrons is represented by narrow (i) a positive `(+(1)/(2))` spin or an arrow `(to)`1 a negative spin `(-(1)/(2))`
Example : the orbital picture of these elements can be represented as follows :