1. The volume of the nucleus as compared to the volume of the atom is   25%   50%   Negligible   75%   Hint Half-n-half Clue   2. The Atomic Theory was given by   J. J. Thomson   James Chadwick   John Dalton   E. Rutherford   Half-n-half Clue   3. The sum of the numbers of the protons and neutrons in the atom of an element is known as   Molecular Weight   Atomic Number   Isotope Number   Mass Number   Half-n-half Clue   4. The alpha particle scattering experiment was carried out by   E. Rutherford   J. J. Thomson   E. Goldstein   J. Chadwick   Half-n-half Clue   5. Atoms of an element with the same number of protons but different number of neutrons in the nucleus are known as   Isotopes   Isobars   Isosters   Twin Atoms   Half-n-half Clue   6. Electrons are   positively-charged particles with mass.   positively-charged particles with negligible mass.   negatively-charged particles with mass.   negatively-charged particles with negligible mass.   Half-n-half Clue   7. The particle discovered in the anode ray experiments is the   neutron   proton   electron   meson   Half-n-half Clue