The Number of a Certain Radioactive Nuclide Present in a Sample

question 12

Multiple Choice

The number of a certain radioactive nuclide present in a sample decays from2.0 × 10² to 6.0 × 10¹ in 23 minutes. What is the half-life of this radioactive species?

• A) 1.6 × 10¹ minutes
• B) 5.2 × 10^-2 minutes
• C) 1.3 × 10¹ minutes
• D) 5.3 × 10¹ minutes
• E) 3.0 minutes

---

Definitions:

Frequency Of Exposure

Refers to the number of times a consumer comes into contact with a particular advertising message over a set period.

Marketing Message

A key piece of communication from a company to its target audience, designed to convey the value proposition and benefits of its products or services.

IMC Budget

The financial plan allocated for Integrated Marketing Communications, outlining expenses for advertising, promotions, public relations, and more.

Advertising Media

Various channels through which advertising messages are delivered to the intended audience, including television, radio, newspapers, the internet, and billboards.