for Technetium-99 answer the following:

for Technetium-99 answer the following: Describe the Radiation type that is emitted. Describe Type of Radiation,...
For Technetium-99 Describe Radiation and Shielding Required. How the travel distance “Radioactive” Isotope in Air, Tissue, and what would be used for Shielding? Can it penetrate through the body? Are there any negative hazards with Tc-99? Calculate the amount of time needed to bring the radioactivity to 25%. Show math.
SECTION B – CHEMISTRY [40] QUESTION 4 [20] 4.1 Briefly define the following terms: 4.1.1 Nucleus (1) 4.1.2 Nucleons (1) 4.1.3 Neutrons (1) 4.2 Deuterium and tritium both have the same number of protons and electrons. What makes them different? (2) 4.3 Complete symbol contain the symbol of the element, the mass number and the atomic number. Give the complete symbols of Bromide and Bromine. (3) 4.4 Draw the atomic structure of the following element: 4.4.1 H (1) 4.4.2 He...