Question

how can i find the position of element in periodic table?

Answer 1

consider the atomic number and split it into electronic configuration for example sodium atomic number yes 11 and the electronic configuration of it is 2, 8, 1 so that the last shell electrons(valence electrons) represent the group number and the number of shells that is 3 represents the period number so by calculating this both you can say the position.

Answer 2

By its electronic configuration... Which means in electronic configuration number of shell represent the period and number of valence electron represent the group... By this u can identify..