The Half-Life of Technetium-99 Is 6

question 61

Multiple Choice

The half-life of technetium-99 is 6.0 hours. How much of a 50.0 mg sample will remain after 24 hours?

• A)25.0 mg
• B)12.5 mg
• C)6.25 mg
• D)3.12 mg
• E)none of the sample will remain

---

Definitions:

College Education

Post-secondary education provided by institutions such as colleges and universities, aiming to award academic degrees or certificates.

Two-Parent Homes

Households where children live with both biological or adoptive parents, as opposed to single-parent homes.

Age at Retirement

The specific age at which an individual stops working and begins to receive retirement benefits.

College Professor

An academic instructor of higher education who is an expert in their subject area and conducts research, teaches courses, and advises students.