Arrangement of electrons in the atoms 1)The energy levels of electrons are denoted by the numbers 1,2,3,4... and shells are represented by K,L,M,N..... 2)The arrangement of electrons in various energy levels or shells of an atom is known as electronic configuration of the element. The maximum number of electrons which can be accommodated in any energy level of an atom … [Read more...] about Arrangement of electrons in the atoms