Types of Radioactive Decay Assignment and Quiz| Questions with 100 % Correct Answers | Verified

Identify whether each reaction represents a chemical reaction or a nuclear reaction by filling in the blank with the word 'chemical' or 'nuclear'. Cl + H -> 2HCl This represents a ________ reaction. H + H -> He + n This represents a ________ reaction. - chemical nuclear Which statement best describes the two reactions? - Reaction B involves a greater change and a change in element identity. Explain why isotopes of the same element behave differently in nuclear reactions but not in chemical reactions. - Isotopes in chemical reactions produce the same chemical compounds and show similar behavior Isotopes in nuclear reactions show different behavior and produce different products. Use the drop-down menus to complete the corresponding cells in the table to the right. A B CD E - particle with two protons and two neutrons high-energy photon intermediate highest thin carboard What is a key difference between chemical and nuclear reactions? - Chemical reactions involve electron rearrangements. Nuclear reactions involve changes to the nucleus. While a certain isotope decays, it emits photons. What kind of decay is happening? - gamma decay Which can have either a positive charge or a negative charge when they are released during radioactive decay? - beta particles How can a scientist assess whether a pure niobium (Nb) sample is responsible for contaminating the lab with radioactivity? - Test the niobium sample to see whether it now contains other elements. Read the passage below about different types of radiation. Different types of radiation have different penetrating abilities. For example, gamma rays can pass through cloth and paper, but alpha particles are blocked by cloth and paper. Beta particles are blocked by aluminum foil, but gamma rays are not. However, all three types of radiation are blocked by thick concrete or lead. Now, examine a table of penetrating powers of different types of radiation. Based on the information, at which numbered spot in the table does each type of radiation belong? - 1 = gamma; 2 = alpha, 3 = beta