1. The currently accepted model of the atom is that of   de Broglie   Rutherford   Heisenberg   Bohr   Hint Half-n-half Clue   2. The particle discovered in the anode ray experiments is the   proton   electron   neutron   meson   Half-n-half Clue   3. Neutrons are   negatively-charged particles with negligible mass.   positively-charged particles with mass.   positively-charged particles with negligible mass.   neutral particles with mass.   Half-n-half Clue   4. The volume of the nucleus as compared to the volume of the atom is   25%   75%   Negligible   50%   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   Isosters   Isobars   Twin Atoms   Isotopes   Half-n-half Clue   6. The three fundamental particles of the atom are   Positron, Neutrino and Gamma Rays   Mesons, Quarks and Anti-neutrino   Nucleus, Anti-quarks and Electrons   Proton, Neutron and Electron   Half-n-half Clue   7. Neutron was discovered by   E. Rutherford   John Dalton   E. Goldstein   James Chadwick   Half-n-half Clue