Skill 7.1c-Perform calculations involving half-life

Skill 7.1c-Perform calculations involving half-life 

The half-life of a reaction is the time required to consume half the reactant. The 

Day Number of half-lives Pa remaining Pa decayed since day 0 

Regardless of whether the given amount of time is an exact multiple of the half-life, the following equation may be used  

Skill 7.1d-Contrast the benefits and hazards of the use of radiation and radioactivity 

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