Question

a question about Physics & Reductionism:
all physics are based in reductionism, and we construct our calculation systems in physics on it!
in EM for calculating the energy of a charge configuration we use : W=integral(epsilon0. E^2. dv).
we know that this equation is based on all charges and the field E is too!
but the energy is't! its mean that the total E is sum of are Ei (i=1, N) but the energy =(E1+E2+...+En)^2. but energy is not based on superposition principle!
what's wrong?

Answer 1

Ok, the En (n=1,2,3...) Is the energy of a quantum orbital or shell of a given element so n=1 would represent the quantum orbital of the inner most electron, nearest to the elements nucleus and hence highest in energy E. As we moves outwards from the elements nucleus, electrons possess slightly less energy or are less tightly held in progressive orbitals or shells. Each successive shell looses a quantum of energy when, the electron jumps in to a higher shell, this is lost by a emission of a photon.

This has nothing to do with superposition of electrons.