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

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Definitions:

Reconstruction

The period following the American Civil War (1865-1877), focusing on the integration of the Southern states into the Union and the legal and social status of the freed African Americans.

Union Draft Law

Legislation during the American Civil War that allowed for the conscription of soldiers into the Union Army, notable for its exemptions which could be bought, leading to discontent.