The Nuclide As-76 Has a Half-Life of 26

question 61

Multiple Choice

The nuclide As-76 has a half-life of 26.0 hours.If a sample of As-76 weighs 344 g,what mass of As-76 remains after 538 minutes?

• A) 67.8 g
• B) 271 g
• C) 144 g
• D) 437 g
• E) 251 g

---

Definitions:

Permanent Workers

Employees who are hired on an indefinite basis, often receiving full-time benefits and job security, as opposed to temporary or contract workers.

Aircraft Manufacturing

The industry involved in designing, producing, and maintaining aircraft.

War Effort

War effort refers to the collective measures and actions taken by a country and its citizens to support military operations during wartime, including economic mobilization, production, and logistics.

Clerical Work

Administrative tasks including filing, typing, record keeping, and handling correspondence, typically performed in an office setting.