The Ratio of Radioactive Parent to Stable Daughter Atoms in a Mineral

question 27

Multiple Choice

The ratio of radioactive parent to stable daughter atoms in a mineral is measured as 1:3. How many half- lives have elapsed since the mineral grain formed, assuming that only parent atoms were present when it crystallized?

• A) 2.0
• B) 0.5
• C) 1.5
• D) 3.0

---

Definitions:

Bowel Sounds

The noises made by the movement of the intestines, indicating digestive activity and health.

Surgical Site Infections

Infections that occur after surgery in the part of the body where the surgery took place, potentially causing complications.

Evidence-Based Guidelines

These are recommendations for patient care that are developed through a systematic review of evidence and an assessment of the benefits and harms of alternative care options.

Blood Glucose Levels

The concentration of sugar in the blood, important for diagnosing and managing diabetes.