Unit Test — Unit test Answers

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?

Which radiation detection method creates visible trails that can show the direction of ionizing particles?

Which type of radiation do people try to protect themselves from by wearing protective clothing that is made of aluminum?

Which type of reaction does this diagram represent?

Why would a doctor most likely restrict a patient’s contact with other people while the patient receives internal radiation?

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

Which best describes what forms in nuclear fission?

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

Consider the nuclear equation below.Which is the missing value that will balance the equation?

A radioactive nuclide that is used for radiation therapy for cancer has 33 neutrons and a mass number of 60. Which is the correct symbol for this nuclide?

A stable atom that has a large nucleus most likely contains

What happens when the amount of fissionable material exceeds the critical mass?