The Isotope Has a Half-Life of 21 Hours

question 46

Multiple Choice

The isotope has a half-life of 21 hours. If a sample initially contains exactly 10000 atoms of , approximately how many of these atoms will remain after one week?

• A)1250
• B)78
• C)39
• D)0
• E)None of these choices are correct.

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Definitions:

National Memorial For Peace

A monument dedicated to remembering and honoring peace, often associated with historical events or figures who have contributed significantly to the pursuit of peace.

Legacy Museum

An institution dedicated to understanding and teaching about the legacy of slavery, racial history, and its lasting impact on society.

Lynching

Practice, particularly widespread in the South between 1890 and 1940, in which persons (usually black) accused of a crime were murdered by mobs before standing trial. Lynchings often took place before large crowds, with law enforcement authorities not intervening.