Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) For the "average" American, exposure to natural radiation sources exceeds that of exposure to human-made radiation sources.
(2) The highest-atomic-numbered element for which stable nuclides exist is bismuth.
(3) The mechanism by which beta particles are generated involves the conversion of a proton into a neutron.

Question

Quizplus · Accepted Answer

(1) TRUE: According to the National Council on Radiation Protection and Measurements, the average American receives about 3.1 millisieverts (mSv) per year from natural sources, but only about 0.6 mSv per year from human-made sources such as medical procedures and nuclear power.
(2) TRUE: Bismuth has the highest atomic number (83) for which there is at least one stable isotope.
(3) FALSE: Beta particles are generated by the conversion of a neutron into a proton (beta-minus decay) or a proton into a neutron (beta-plus decay), not a proton into a neutron as stated in the statement.

Characterize EACH of the Three Given Statements as Being TRUE