Radon ²²²Rn Is a Radioactive Gas Produced as Part of the Natural

question 56

Multiple Choice

Radon ²²²Rn is a radioactive gas produced as part of the natural decay chain of uranium.Because it is a gas,it can pose a health problem through inhalation,especially when high concentrations accumulate in homes.Suppose 5 $\times$ 10⁸ radon atoms are present in a basement at some time.If the basement is sealed and left,then how many radon atoms remain after a month (31 days) ? (The half-life of ²²²Rn is 3.82 days.)

• A)1.81 \(\times\) 10⁶
• B)1.49 \(\times\) 10⁵
• C)1.23 \(\times\) 10⁶
• D)6.16 \(\times\) 10⁷
• E)None of these is correct.

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

---

Definitions:

Direct Materials

Raw materials that can be directly attributed to the production of a product.

Cotton

A natural fiber and a key agricultural commodity used primarily in the textile industry for making fabrics.

Internal Auditing

The independent, objective assurance and consulting activity designed to add value and improve an organization's operations, focusing on internal controls and business processes.

Administrative Expense

Costs related to the general management and administration of an organization, such as salaries of executives and office supplies.