Which Statement A-D, Regarding the Activity of a Radioactive Sample

question 142

Multiple Choice

Which statement A-D, regarding the activity of a radioactive sample, is not correct?

• A)The activity of a sample is the number of decay events per second.
• B)The activity depends on a rate constant for the decay and the amount of the radioisotope in the sample.
• C)Radioactive decay follows first-order reaction kinetics.
• D)The activity will decrease to half its initial value in a time equal to ln(2)/k, where k is the rate constant.
• E)A-D are all correct.

---

Definitions:

Deed of Trust

A legal document in some states that involves a borrower, lender, and a trustee, securing a real estate transaction as collateral for a loan.

Surety

A person or entity that takes responsibility for the performance of another's obligations, such as fulfilling the terms of a contract or repaying a loan.

Guarantor

An individual or entity that agrees to be responsible for another's debt or obligations if the original party fails to meet their commitments.

Trust Deed

A legal document in real estate transactions where the title of a property is transferred to a trustee as security for a loan until the borrower repays the loan.