What Percent of a Parent Radioactive Element Would Remain After

question 57

Multiple Choice

What percent of a parent radioactive element would remain after three half-lives of decay to its daughter isotope?

• A) 75
• B) 50
• C) 25
• D) 12.5
• E) 6.25

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Definitions:

Components

The parts or elements that make up a larger system, product, or structure.

Contract Employee

An individual hired to perform a specific job or task for a designated period, not considered a permanent or long-term employee of the company.

Salaried Employee

An employee who receives a fixed amount of compensation from an employer regularly, typically on a monthly or bi-weekly basis.

Homemaker

An individual responsible for managing household tasks and caring for the family, without receiving formal wages.