If a Radiometric Analysis of an Isotope and Its Stable

question 1

Multiple Choice

If a radiometric analysis of an isotope and its stable element yielded 25% of the isotope and 75% of its stable element,how many half-lives would have occurred?

• A) 5
• B) 4
• C) 3
• D) 2
• E) 1

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Definitions:

Nominal Account

A temporary account that records transactions related to expenses, revenues, gains, and losses during an accounting period.

Zero Account

A banking or accounting term referring to an account that has a balance of zero, meaning it has no funds.

Depreciation Expense

An accounting method to allocate the cost of a tangible asset over its useful life.

Permanent Account

A ledger that remains open when an accounting cycle ends, with its balances being transferred to the following period.