how to find group and period of an element| how to find block and valency of the element| aufbau

how to find group and period of an element| how to find block and valency of the element| aufbau
in this video we will discuss about many more idea about the aufbau principle.
we will discuss how to find name ,symbol ,group ,period ,block and valency of the element by aufbau principle.
so watch it guys and clear your doubt

how to find group and period of elementshow to find block and valency of the elementseasy trick to find group and period of elements