Exam 5: Nuclear Chemistry

A patient receives 3.0 mL of a solution containing technetium-99m for a breast image.If the activity of the technetium-99m is 9.5 mCi/mL,what is the dose received by the patient?

One mCi of a radioactive substance emits more radiation than one μCi of the same substance.

During alpha emission,the atomic number decreases.

complete the missing feild -After two half-lives,the radioactivity of a sample is ________ of its original activity.

The nuclear reaction Sn → Sb + ? is an example of ________.

X-rays are generated by the nucleus during radioactive decay.

One type of radiation that is not used for medical procedures is the cosmic ray.

What is the radioactive particle released in the following nuclear equation? W → Hf + ?

A positron is a particle emitted from the nucleus that has the same mass as a(n)________.

complete the missing feild -The combination of H-3 and H-2 to give He-4 and a neutron is called nuclear ________.

An imaging technique in which a computer monitors the degree of absorption of X-ray beams is known as ________.

Which of the following is suitable as a minimum shielding for beta particles?

The SI unit used to measure the biological effect of radiation sample is called the ________.

One symptom of mild radiation sickness is ________.

What is the nuclear symbol for a radioactive isotope of copper with a mass number of 60?

If the half-life of hydrogen-3 is 11.8 yr,after two half-lives the radioactivity of a sample will be reduced to one-half of the original amount.

The damaging effects of radiation on the body are a result of ________.

Krypton-79 has a half-life of 35 h.How many half-lives have passed after 105 h?

One symptom of radiation sickness is an increased production of red blood cells.

Exposure to radiation is unavoidable because some radioactive elements occur naturally.