Tritium, a Radioactive Isotope of Hydrogen, Has a Half-Life of 12.4

question 58

Multiple Choice

Tritium, a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 69 grams, how much will remain after 75 years?

• A)0.0000 grams
• B)61.5289 grams
• C)1.5848 grams
• D)17.2500 grams
• E)1.0426 grams

---

Definitions:

Subsystem

A smaller component of a larger system.

Open System

An organization or entity that interacts with its environment by exchanging information, resources, and influences with its context.

Closed System

An organizational model that operates independently of external influences, focusing inwardly for resources and information.

Linear Programming

A mathematical technique for optimizing a linear objective function, subject to linear equality and inequality constraints.