An Isotope of Krypton Has a Half-Life of 3 Minutes

question 17

Multiple Choice

An isotope of krypton has a half-life of 3 minutes. A sample of this isotope produces 1000 counts per minute in a Geiger counter. Determine the number of counts per minute produced after 15 minutes.

• A)zero
• B)15
• C)30
• D)60
• E)1000

---

Definitions:

Agrarian Colony

A settlement primarily engaged in agriculture, established for the purpose of producing crops and livestock.

Native Americans

The indigenous peoples of the United States, including various tribes, who were the original inhabitants of the land prior to European colonization.

Fur Trappers

Individuals or workers engaged in the trapping and trading of animal fur, often in the wilderness, a common occupation during the frontier days of North American exploration and settlement.

Slave Traders

Individuals or companies involved in the buying and selling of human beings for the purpose of forced labor, a practice prominent in historical global trade networks.