All the Disintegrations of a Sample of an Unknown Nuclide

question 68

Multiple Choice

All the disintegrations of a sample of an unknown nuclide weighing 4.6 × 10^-2 g were counted. In the first half-life of the sample, the total number of disintegrations counted was 4.3 × 10²⁰. What is the atomic weight of the unknown element?

• A) 32 amu
• B) 16 amu
• C) 8 amu
• D) 4 amu
• E) none of the above

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Definitions:

Patient Morbidity

Refers to the incidence of disease, illness, injury, or other physical or mental impairment within a patient population.

Mortality Statistics

Data related to the frequency, causes, and distribution of deaths in a population.

Secondary Diagnosis

Diagnosis other than the primary diagnosis for other conditions that are also affecting the patient at the time of the visit.

Primary Diagnosis

The main medical diagnosis determined after evaluation, representing the most serious or significant condition that prompted the medical encounter.