What Is the Specific Activity (In Ci/g) of an Isotope

question 27

Multiple Choice

What is the specific activity (in Ci/g) of an isotope if 3.56 mg emits 4.26 × 10⁸ β particles per second?

• A)0.003232 Ci/g
• B)0.0115 Ci/g
• C)0.309 Ci/g
• D)3.23 Ci/g
• E)None of these choices are correct.

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Definitions:

Direct Write-off Method

An accounting method where uncollectable accounts receivable are directly written off against income at the time they are deemed nonrecoverable.

Uncollectible Accounts

Accounts receivable that are considered unlikely to be collected and therefore written off as an expense to the business.

Allowance Method

An accounting technique used to estimate uncollectible accounts receivable and adjusting the books accordingly.

Bad Debts

Accounts receivable that are considered uncollectible, leading to a financial loss for the company.