Unique beuty of my proposed Nuclear structure could be able to clearly explain the actual stability, abundance, radioactivity of the elements. The structure of the nucleus changes from spherical to prolated spheroid, to double spherical, to spherical dumbbell, to double dumbbell shape and stability decreases accordingly during increase of atomic weight.When ever the structure of a nucleus(transition nucleus) changes from one form to the next form,it suffer an extreme instability in nature.Here the transition point from the spherical(most stable structure from atomic no.6 to 42); to Prolated Spheroid structure, one most unstable transition nucleus 43-Technetium is found (also non abundant in nature). Again Prolated Spheroid(of atomic no.44 to 60,), one most unstable transition nucleus of 61-Prometheum is observed (which is also non abundant in nature); Double Spherical dumbbell (quasi stable, from atomic no.62 to 84) then also one most unstable transition nucleus 85-Astatin is detected (which is shortly lived radioactive element). There after Spherical Spheroid dumbbell structure of nucleus is observed(which are Unstable Radioactive elements, from atomic number 86 to 102). There after all the elements with Double Spheroidical Dumbbell nuclear structure is observed.These are extremely unstable radioactive elements (rarely found in nature of atomic no.103 to 120). In all the nucleus of the atoms, predattom must be present at the centre of the nucleus to provide its further stability and to originate gravitational force of attraction which contribute mass/weight of the atoms. I have theoretically discover the last two (still undetected)element of atomic no.119, l have given it to the name of Mother Teressa(MT).Its probable at.wt. of 296-300 with life period of 10^-8Sec (approx.) and belongs to periodic group of l(a) with the character of that group. Another element of atomic wt. of 120,I have designate it as Swami Vivekananda(SV)of probable at.wt.of 298-302 with same half life period and belongs to group ll(a) with the same chemical character of the same group. The mathematical details of deducing structure of nucleus are given in my wordpress blog(bhaskarbhabani dutta.com).