The Half-Life of ²⁰F Is 11 S

question 68

Multiple Choice

The half-life of ²⁰F is 11 s. What fraction of a sample of ²⁰F will remain after 99 s have elapsed?

• A) 1/10
• B) 1/9
• C) 1/400
• D) 1/512
• E) None of these

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Definitions:

Unadjusted Trial Balance

A list of all accounts and their balances at a particular date before any adjusting entries are made, used to check the accuracy of debits and credits.

Income Statement Columns

Sections in an income statement that organize and display revenue, expenses, and net income over a specific period.

Adjusted Trial Balance

A list of all accounts and their balances after adjusting entries are made, used to verify the equality of debits and credits.