Oxidation-Reduction — Unit test Answers

A large atom decays and emits a particle. After the reaction is complete, the atom’s mass has changed substantially. What kind of particle has most likely been emitted?

In which isotope is the strong nuclear force not strong enough to balance electrostatic forces between protons?

The atomic symbol represents potassium-40 (K-40), a radioactive isotope that has 19 protons and 21 neutrons. Which atomic symbol could represent an isotope that results from the decay of K-40?

Which particles that make up an atom are involved in nuclear reactions?

Which issue poses the greatest long-term challenge in the development of new nuclear power plants?

Consider the three equations below.Which statement do these reactions best support?

A student writes the following statements about the relationship between mass defect and nuclear binding energy.1. When an isotope’s protons and neutrons come together to form a nuclide, a small amount of mass is converted to energy.2. An equivalent amount of energy must be added to the nuclide to split apart its protons and neutrons.3. Statement 1 describes the isotope’s nuclear binding energy, and statement 2 describes the isotope’s mass defect.Which statement is correct?

What effect does supercritical mass have on a nuclear reaction?

A stable atom that has a large nucleus most likely contains

Which procedure will most increase the energy output of a nuclear reactor?

Which of the following is a simple definition of reduction?

Which best describes nuclear fusion?

After a radioactive atom decays, it is the same element that it was before with no measurable change in mass. Which kind of decay has occurred, and how do you know?

Which best describes what forms in nuclear fission?

Which type of reaction does this diagram represent?