The Half-Life of Iodine-135 Is 8 Days

question 298

Multiple Choice

The half-life of Iodine-135 is 8 days. A 121-gram sample of Iodine-135 is monitored for one month. Assuming there are 30 days in the month how many grams of Iodine-135 are left after 1 month (rounded to the nearest hundredths) ?

• A) 0.47
• B) 8.99
• C) 110.96
• D) 60.50
• E) 100.58

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Definitions:

Ending Balance

The difference between footings in a T account.

Asset Turnover Ratio

A ratio that indicates how efficiently a company uses its assets to generate sales and thus helps measure the overall efficiency of the company.

Net Sales

The amount of revenue from sales transactions after deductions for returns, allowances, and discounts have been taken into account.

Accounts Receivables

Accounts Receivables are amounts owed to a business by its customers for goods or services delivered on credit, representing assets on the balance sheet.