Nitrogen-13 Has a Half-Life of 10 Minutes

question 102

Multiple Choice

Nitrogen-13 has a half-life of 10 minutes.How much of a 128 mg sample would remain after 40 minutes?

• A)4 mg
• B)8 mg
• C)16 mg
• D)32 mg

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Definitions:

Voucher System

A control mechanism in accounting that uses vouchers to record transaction details and authorize cash disbursements.

Voucher System

An internal financial control system for managing disbursements and ensuring all transactions are properly documented and approved before payments are made.

Periodic Inventory Method

An accounting method where inventory is physically counted at the end of each period to determine the cost of goods sold and ending inventory.

Petty Cash Fund

Fund (source) that allows payment of small amounts without the writing of checks.