A 99-G Sample of Iodine-131 Is Stored for Exactly 3 Weeks

question 52

Multiple Choice

A 9.9-g sample of iodine-131 is stored for exactly 3 weeks .If the decay constant is 0.0861 day^-1,What mass of the isotope remains?

• A) 0.15 g
• B) 7.6 g
• C) 1.6 g
• D) 2.6 g
• E) 5.5 g

---

Definitions:

Albert Bandura

A psychologist renowned for his work on social cognitive theory, including the concept of self-efficacy and observational learning.

Transition Theory

A framework or model that explains how individuals navigate changes in their lives, addressing phases and coping mechanisms during transitions.

Nancy Schlossberg

A psychologist known for her research and theory on career development, adult transitions, and retirement.

Learning Styles Inventory

An assessment tool used to determine a person's preferred method or style of learning, such as visual, auditory, or kinesthetic.