Instead of the old atomic models, in which electrons are orbiting the nucleus, a new
atomic model is proposed, in which the electron and proton are not separated in the atom but
exist in the form of protium, called the plecton. A neutron combined with a plecton plays a role
to be the elementary building block of the atom. In the new atomic model, the plecton and
neutron in the atom are in dynamic equilibrium and exchange their forms and energy constantly.
The building block piles up spherically and makes a collection of 4He units to be stable
elements. The maximum plecton number (or the number of plecton-neutron pairs) in the
outmost shell of an inert atom increases with the square of the reduced atomic radius. This new
atomic model gives a perfect match with the current periodic table of elements and the specific
quantum number of each constituent plecton (formerly electron) in the atom.