NMTCB Board Prep| Exam Questions and Answers| 2024 Update with Complete Solutions| Grade A+

NMTCB Board Prep| Exam Questions and Answers| 2024 Update with Complete Solutions| Grade A+ Nuclides with the same atomic number ( the same number of protons) but a different number of neutrons are called: isotopes Two nuclides with the same atomic mass but different atomic numbers are called: isobars A nuclide that emits particulate or photon energy to achieve a more stable state: radionuclide Another name for a helium ion containing two protons and two neutrons: alpha particle What is a beta particle? an electron Why are alpha and beta particles not used for imaging? They do not efficiently exit the body, so they can not/ are hard to detect What ratio of protons and neutrons favors beta decay? A low proton-to-neutron ratio, as compared with stable nuclei What is the relationship between the mean energy and the maximum energy of a beta spectrum? The mean energy is about one-third of the max energy What ratio of protons and neutrons favors positron decay? A high proton-to-neutron ratio What two particles are emitted from the nucleus during beta decay? A beta particle and an antineutrino Two nuclides with the same number of neutrons but different atomic numbers are called: Isotones What particles are released from the nucleus during positron decay? A positron and a neutrino What is the minimum amount of nuclear energy needed required for positron decay? 1.02 MeV What is the fate of a positron? To travel a short distance, combine with an electron, and be annihilated