How do electronic configurations of elements change in second period of periodic table with increase in atomic numbers ?

Question

Philoid · Accepted Answer

Electronic configuration of elements are as follows:

Lithium (2,1), Beryllium(2,2), Boron(2,3), Carbon(2,4), Nitrogen(2,5), Oxygen(2,6), Fluorine(2,7) and Neon(2,8).