1. According to Rutherford, the atom consists of the following two parts   Protons and Neutrons   Electrons and Protons   Nucleus and the extra-nuclear part   Neutrons and Electrons   Hint Half-n-half Clue   2. The volume of the nucleus as compared to the volume of the atom is   25%   75%   50%   Negligible   Half-n-half Clue   3. Neutron was discovered by   E. Goldstein   John Dalton   E. Rutherford   James Chadwick   Half-n-half Clue   4. The number of protons present in the atom of an element is known as the   Proton Number   Atomic Weight   Mass Number   Atomic Number   Half-n-half Clue   5. Neutrons are   neutral particles with mass.   negatively-charged particles with negligible mass.   positively-charged particles with mass.   positively-charged particles with negligible mass.   Half-n-half Clue   6. The alpha particle scattering experiment was carried out by   E. Goldstein   E. Rutherford   J. Chadwick   J. J. Thomson   Half-n-half Clue   7. The currently accepted model of the atom is that of   Rutherford   Bohr   de Broglie   Heisenberg   Half-n-half Clue