If a Radiometric Analysis of an Isotope and Its Stable

question 1

Multiple Choice

If a radiometric analysis of an isotope and its stable element yielded 25% of the isotope and 75% of its stable element,how many half-lives would have occurred?

• A) 5
• B) 4
• C) 3
• D) 2
• E) 1

---

Definitions:

OSHA Violation

A failure to comply with standards and regulations set by the Occupational Safety and Health Administration, potentially endangering workers.

Discretionary Fine

A penalty imposed by a person in authority, who has the discretion to determine both the necessity and the amount of the fine.

Substantial Probability

means a significant likelihood of an event occurring, used in various contexts to assess risks or outcomes.

Serious Physical Harm

Significant or severe injury to the body that can result in lasting physical damage or impairment.