Question 11 5 pts Neutrons are needed to overcome the of the protons in the nucleus. O electrostatic repulsion O electrostatic force O repulsive force O electrostatic attraction Question 12 5 pts A radioactive event produces an atom with an atomic mass two amu less than its parent. The particle emitted was O a positron. O an alpha particle. O a beta particle. O a gamma ray. Question 13 5 pts On radioactive decay, the daughter nuclide has an atomic number one less than the parent nuclide. The particle emitted was a positron. an alpha particle. ) a beta particle. O a gamma ray. Question 14 5 pts On radioactive decay, the daughter nuclide has an atomic number one greater than the parent nuclide. The particle emitted was O a positron. O an alpha particle. O a beta particle. O a gamma ray