Based on the type of radiation emitted, what material would be best at blocking the radiation?

Write a balanced nuclear equation representing the chosen process.Identify the half-life of the parent isotope in the chosen process and determine the amount of time required to reduce to 6.25 % of the original amount.Identify the product (daughter) isotope as stable or unstable. If unstable, predict what mode of decay is most likely.Provide a brief explanation of the main application of the chosen process.Based on the type of radiation emitted, what material would be best at blocking the radiation?Calculate the mass defect and binding energy for the isotope.Write a chemical equation using the element.